Which values or value are the expressions 15k + 9 and 3(2k + 3) +9k equivalent to?

Solve the system of equations. y= 2x y= x^2 - 15

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?