Sarah wants to buy a snowboard that has a total cost of $600, including tax. She has already saved $100 for it. At the end of each week, she is paid $160 for babysitting and is going to save half of that for the snowboard. A) Write an inequality that can be used to determine the minimum number of weeks Sarah needs to babysit to have enough money to purchase the snowboard. B) Determine and state the minimum number of full weeks Sarah needs to babysit to have enough money to purchase this snowboard.

Which expression shows the sum of the polynomials with like terms grouped together

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

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?