How many prime numbers are there between 63 and 21

Assume that women's heights are normally distributed with a mean given by mu equals 62.5 in , and a standard deviation given by sigma equals 2.6 in. (a) if 1 woman is randomly selected, find the probability that her height is less than 63 in.

Solve a+b=9; 2b+2c=13; 2a-c=11 unknowly

Write 4 tens and 3 hundredths as a decimal

Lo solve the equation 173 13h + 30, what should you do to both sides of the equation in your first step? add 30 add 13 divide by 13 subtract 30

kristen is following a punch recipe it calls for 3 1/4 of apple juice and 6 7/8 cups of pineapple juice. How many cups of fruit juice does she need in all.

A company estimates its total profit (profit = total revenue minus total cost) as P (x) = 2x5 - 3x4 - 5x2 - 2, where P is in thousands of dollars and x is the number of years elapsed since the company was founded.

On a number line, the surface of a river is marked at - 225 feet and the top of a building is marked at + 18 feet, where 0 represents sea level.

The length of a rectangle is 3 inches more than its width, and its perimeter is 22 inches. Find the width of the rectangle. 4 in. 5 in. 7 in.

In 2017, the world's population was 7.451 billion people. Tge world growth rate is 1.13% annually, (a) what the projected world's population in 2035? (b) how long will it take for world's population to double?

What multiplies to 105 and adds to 16