How do i solve for A=1/2πr2 (for π)

Sara is having a dinner party for four friends and needs to reduce the serving size of the meatloaf recipe. She uses the equation StartFraction x over 4 EndFraction = 5. How many servings did the recipe originally make? 4 5 9 20

a circular window with a circumference of 10 feet is to be placed into a wall at a new home. The builder cuts a hole for the window and says that it has an area of at least 8 square feet. explain why she is right or wrong. Show work.

Solve the equation. x - 9 = - 6x 5 a. 14 b. 7 c. 2 d. 21

protective cover for a wireless tablet has a height of 8 inches with the base of 7 inches What is the area of the cover

Simplify the expression. 22 • 23 10 16 24 32

What is the answer to the question 2+2

Ruben is collecting cans for the recycling contest at school. He makes two plans to try to collect the most cans. Plan A: collect 20 cans each week for 9 weeks.

N 2010, the estimated population of New York City was 8.18 * 106 people. The population of the entire state that same year was about 2.37 times this number. Which expression shows the approximate population of the state of New York in 2010?

What is O. 9% of 1000

Write a quadratic equation with the roots 3/4 and - 5