Marice mows the lawns on saturday. last week it took him 5 1/2 hours to finish. this week it took only 5 hours. how many times longer did it take last week than this week?

The sum of two numbers is 86, and their difference is 20. find the two numbers

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Complete the input-output table for the linear function y = 3x. complete the input-output table for the linear function y = 3x. a = b = c =