Simplify each sum or difference

(5r^3+8) + (6r^3+3)

The area of a square window is 81 square inches. How long is each side of the window?

Round $60.55 to nearest dollar

0.002 into a percent and fraction and in words

Write the expression. two more than the product of four and m

Which graph represents f (x) = (x + 2) 2 - 3? On a coordinate plane, a parabola opens up. It goes through (negative 4, 1), has a vertex at (negative 2, negative 3), and goes through (0, 1). On a coordinate plane, a parabola opens up.

The ratio of surface areas of two similar solids is equal to the square root of the ratio between their corresponding edge lengths. true or false

13. The relationship 1/sin (θ) is equivalent to which of the following trigonometric functions? A. sec (θ) B. csc (θ) C. cot (θ) D. arcsin (θ)

According to the Fundamental Theorem of Algebra, which polynomial function has exactly 6 roots

It took Lisa 2 hours to read the first 100 pages of a book. Then she read the last 44 pages in 1 hour. How many pages did she read per minute for the whole book?

Four friends are comparing the amount of dog food their dogs eat per day. Charlotte's dog eats 10.5 pounds of dog food in 12 days. Meiling's dog eats 15 pounds of dog food in 16 days. Amelia's dog eats 4 pounds of dog food in 6 days.