After sailing 16 mi, a sailor changed direction and increased the boat's speed by 4 mph. an additional 12 mi was sailed at the increased speed. the total sailing time was 3 h. find the rate of the boat for the first 16 mi.

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Which of the following is not a subset of {1,2,3}?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.