Mr. Jackson gave an exam worth 50 points. The mean score on the exam was 38, and the standard deviation was 4.

Mr. Jackson also reported his students’ z-scores.

Corey’s z-score was –1.75. This means that Corey scored
points on the exam.

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.