Sarah received a score of 850 on the SAT and has signed up for a test prep class to help her improve her score. The test prep company claims that each class she attends will increase her score by 10 points.

Question

Part A: Assuming the test prep company's claim is correct, define each variable and write an expression to represent Sarah's SAT score after she attends any given number of classes.

Answer 1

Let's define the variables:

S = Sarah's SAT score
C = Number of classes attended

The expression to represent Sarah's SAT score after attending any given number of classes is:

S = 850 + 10C