Ito washes 7 cars in 3 hours. Joan washes 9 cars in 4 hours. Who
washes cars at a faster rate?

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.