Marissa has taken four 100- point tests in math this semester. her mean score is 89%. what score does she need on test 5 so the mean will be 90%

Which expresions are equivalent to the one below? check all that apply. 5x

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

Which statement describes the slope of the line?