Use scientific notation to estimate the following:

How many times greater is Mount Everest's highest peak than Mount Olympus's?

Mount Everest - 8,849.87 meters

Mount Olympus - 2,919.07 meters

Simplify 9r-2s-4r-3s

Domain and range of y=2x+1

Dave Bowers collects U. S. gold coins. He has a collection of 53 coins. Some are $10 coons, and the rest are $20 coins. If the face value of coins is $750, how many of each denomination does he have

5) Consider the sequence of steps to solve the equation: 2 (x - 4) + 5x = 9x - 10 Given ⇒ 2 (x - 4) + 6x = 9x - 10 Step 1 ⇒ 2x - 8 + 6x = 9x - 10 Step 2 ⇒ 2x + 6x - 8 = 9x - 10 Step 3 ⇒ 8x - 8 = 9x - 10 Step 4 ⇒ 8x - 8x - 8 =

Factor 28y + 36. Write your answer as a product with a whole number greater than 1.

Expand And Simplify (3x+4) (2x+3)

A rectangle's base is 7cm longer than its height. The rectangle's area is 98cm.

In a figure there are two adjacent triangles, KJL and LJM. KJL = (3x + 11) degrees. LJM = (5x + 3) degrees. Angle KJH = 32 degrees. What is the value of X? What is the angle of KJM?

What is 4 1/2 - 3 5/12 in a mixed number in lowest terms?

Find the greatest common factor of 5 and 10