A= nr^2, solve for r^2. asap tysm!

Step-by-step explanation:

I take it the n is meant to represent pi.

A = pi r^2   Divide both sides by pi

A/pi = pi r^2 / pi

P / pi = r^2

A/n = r^2

Step-by-step explanation:

A = nr^2

Divide each side by n

A/n = n r^2/n

A/n = r^2

A.) 3.2 pounds package has a shipping cost of $4.13. We can't use the cost assigned to 3 lbs because the package is over 3 lbs but it is not over 4 lbs so we use the cost of 4lbs.

b) It is better to use a line graph where x values represent the weight in pounds and the y values represent the cost.

c) f(x) = 2.69 + 0.48(x-1)

d) domain is the x values; range is the y values