Katelyn did this work to solve an equation. did she make an error? 4(x-2)-3=7x 4x-2-3=7x

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?