Three boxes are stacked one on top of the other. One box is 3 feet 2 inches tall, one is 2 feet 3 inches tall, and one is 6 feet 9 inches tall. How high is the stack? Write your answer in feet and inches. Use a number less than 12 for inches.

One integer is 8 times another. if the product is 72, then find the integers

Given abcd ac=38 and ae=3x+4 find the value of x

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103