Ed owns a brake repair shop. He charges $25 to check brakes. He charges $50 for a new set of brakes. He charges $75 for labor to put a new set of brakes on.
If 5 cars came in today, and 3 of them needed a brake check and the others needed new brakes,
which equation would tell Ed how much money he made?
2(25) + 3(50 +75)
3(50) + 2 + 25 + 75
3(25) + 2(50)
3(25) + 2(50 + 75)

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?