Lois wants to average 83% on her 5 tests to assure herself a B. If she scores 72%, 90%, 85% and 88% on her first four tests, what does she need to earn on her last test to meet her goal?

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.