Simplify this expression. If it is already simplified, then write it as it is.

20x^2 + 14x^5 + 8x^2 + 4x^5

Convert 90 miles per hour to feet per second.

A mountain climber on Mt. Everest is at 29,035 above sea level. A stone at the bottom of the Dead Sea is at 1,349 below sea level. What is the difference in elevation between the mountain climber and the stone?

What is the lenght of the sides of 3 rectangles where the perimeter is 14 using whole numbers

Eighty-five thousand four standard form

Tina made a 9-inch apple pie, which she cut into 8 slices. Tina and 2 of her friends each ate a piece of pie. what is the approximate area of the remaining pie? A. 18 in^2 B. 24 in^2 C. 40 in ^2 D. 159 in^2

Give an example of a real number that is not rational

Tyler baked 702 cookies. He sold them in boxes of 18. After selling all of the boxes of cookies for the same amount each, he earned $136.50. What was the cost of one box of cookies?

Juan selects 2 colored pencils randomly. There are 4 green, 3 yellow, 4 red, 3 blue and 2 orange. What is the probability Juan chooses a red, replaces it, and then chooses an orange? A: 1 over 32 B: 1 over 30 C: 8 over 225 D: 3 over 8

How do you find the lcd

Process of substitution y=2x-4 4x+5y=22