Simplify each expression. Justify each step.

1 - (5n*9) * 2n

2 - 3X * (7*X)

3 - (4m*2) * 5m

4 - (7+47+3) [5 * (2*3) ]

The formula for perimeter of a rectangle is P=2L+2W where L is the length and w is the width. A rectangle has a perimeter of 24 inches. Find its dimensions if its length is 4 inches greater than its width.

The height of an ostrich is 20 inches more than 4 times the height of a kiwi. if an ostrich is 108 inches rall, how tall is a kiwi

There are two aircraft carriers, A and B, and the carrier A is longer in length the carrier B. The total length of these two carriers is 4178 feet, while the difference of their lengths is only 14 feet.

Is 6 to the third power an irrational number

Triangle xyz is reflected across the x-axis, and x = (-11, 8). what are the coordinates of x'?

Build a triangle is it possible to build 5,5,3

Eric and six friends spent a day at the musement park at the end they decided to pair up for roller coaster rides so that each friend would ride with each others exactly once how much rides would be taken

Jill has been watching the squirrels that live in her neighborhood. The number of squirrels changes each week. n f (n). 1 8. 2 12. 3 18. 4 27. Which function best shows the relationship between n and f (n) ?. A) f (n) = 12 (1.5) n. B) f (n) = 12 (1.

Which numbers are rational numbers? Select all that apply. A. - 3/2 B. 5 C. √32 D. - 7 E. 3.73773777 F. 0

You board a Ferris wheel at ground level and travel to the very top, when it stops to allow more riders to get on. How many degrees has the Ferris wheel rotated?