You have $75 and need to buy 9 books at the bookstore and each book costs d dollars. ​Write an algebraic expression to represent the amount of money left over.

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

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.

Atest consists of 10 multiple choice questions, each with 5 possible answers, one of which is correct. to pass the test a student must get 60% or better on the test. if a student randomly guesses, what is the probability that the student will pass the test?