The formula for simple interest i is i= prt. solve the formula for the interest rate r if the principal pis $1500,the time t is 2 years, and the interest earned i is $90.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?