What is the value of the product (3 - 21(3 + 21)? 2 05 O 9 + 4 9 - 41​

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Which of the following equations is equivalent to x/3-6/x=1