Simplify the expression below.
(8^2)^6

a.) 8^4
b.) 8^3
c.) 8^12
d.) 8^8

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?