A clock is in the shape of a circle with radius r. The area A is given by the formula A=πr^2. Solve the formula for r. Then approximate the radius of the clock that has an area of 200 square inches.

Please help me and show me how to do it!!

7.97 inches.

Step-by-step explanation:

Given the area of the clock is 200  sq inches.

#The clock is circular and its area is calculated using the formula:

Where r is the clock's radius and is a constant()

#We substitute for and the given area(200 sq inches) in the area function to solve for r:

Hence, the clock's radius is 7.97 inches.

A.Greg will need  mixed 2 cups of yellow paint with each cup of blue paint.

B. cup of blue paint

C.$9

Step-by-step explanation:

We are given that the ratio of the number of cups of yellow paint to the number of cups of blue paint that Greg mixed to make a shade of green paint is 2:1

A.

Ratio of number of cups of yellow paint to the number of cups of blue paint=2:1

Number of cups of yellow paint =2

Number of blue paint=1

It means Greg will need  2 cups of yellow paint mixed with each cup of blue paint.

B.2 cup of yellow paint  need cup of blue paint =1

1 cup of yellow paint need cup of blue paint=

Hence, the number of blue cups is should Greg add to each cup of yellow paint to make the shade of green.

C.If Greg purchased number of cups of yellow paint =6

Cos of 6 cup=$54

Cost of each cup =$9

Hence, the unit price per cup of yellow paint is $9.