Joshua mows lawns on the weekend to make extra money. two weeks ago he mowed a neighbor's lawn for 1/2 hour and earned $10. last week he mowed his uncle's lawn for 3/2 hour and earned $30. this week he mowed the lawn at the community center for 2 hours and earned $30. which job paid the best? explain your reasoning.

What is the area of the trapezoid shown ?

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 value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12