Elena Sarkis

Keep records from card one, not card twelve. A dated list of applications, approvals, bonus terms and annual fee dates costs nothing now and is impossible to reconstruct later. Mine has saved me from a duplicate application twice.

Failed card retries alone are a part time job at consumer volume. It is genuinely a hidden tax on cheap subscriptions.

Also note that Cramer's rule is dead the moment the determinant is zero, since you would be dividing by it. If your course leaned on Cramer's rule this is exactly the case it cannot handle, and row reduction is the fallback for everything.

Check whether the annual fee counts toward the requirement on your card, some issuers include it and some do not. Mine did, which was 95 dollars I did not know I already had. It is one line in the terms and takes two minutes to find.

Worth adding that id(x) in the interpreter is the quickest way to check this yourself. Print id(old[0]) and id(new[0]) and the answer is right there.

Small bookkeeping thing that trips people up on this exact problem: do not carry the +C through the algebra. Solve for I first, divide by 2, then stick the constant on at the end. Otherwise you get a C/2 and start wondering whether you lost a factor somewhere.

Also just differentiate your answer. Thirty seconds of product rule tells you whether the signs are right, which matters here because two of the four terms flip.

It surprises everyone once. The reasoning is that the request itself succeeded, the server just told you no.

First, breathe, committed work is very hard to actually lose. Before anything else make a safety copy of the branch pointer:

git branch backup-monday

That costs nothing and means every commit you have is reachable by name no matter what happens next.

Then pick one of two things. git pull --rebase replays your commits on top of theirs and gives you a clean straight line, which is what most teams want. git pull --no-rebase makes a merge commit, which is uglier in the log but never rewrites your commits. Both are safe. If a rebase goes sideways mid conflict, git rebase --abort puts you exactly back where you started.

That will be it. Spend the difference now if the window is still open, and if it has closed, call anyway and ask, some agents will honour it once you explain.

Check these four before you call, in this order.

1. What does the spend window actually start from, account opening or first statement? Those differ by up to a month and it is the most common miscount.
2. Did anything get refunded or disputed during the window? Refunds usually subtract from the qualifying total.
3. Do fees, interest, balance transfers or cash advances count? Usually not, and people include them by accident when they add up statements.
4. Are you excluded by a previous bonus on the same or a related product? Those rules are often written as once per lifetime or within a set number of years, and the application will still let you apply.

If all four are clean, call. Most bonuses post one to two statements after the qualifying spend posts, so eight weeks with two cycles closed is late enough to ask about without feeling silly.

I have not asked. Not once. I kept telling myself it was not ready, and reading that back it is obviously the whole problem.

I am at about fourteen. So probably early rather than doomed, which is a nicer place to be than I thought this morning.