John took two tests and his average is 63. Suppose he plans to score 100 on the rest of his tests.
a. Write a function that models his final grade based on the number of additional tests he takes.

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

Select the lengths in centimeters that would form a right triangle

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827