Alex made a fruit salad with 1 3/5 pounds of blueberries and 2 3/10 pounds of watermelon. How many pounds of fruit did Alex use in all? Explain your answer using an equation.

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.