Find the surface area of a sphere with a radius of 8cm

How do i find the percentage if my number correct is 68 and my total is 85?

What is the solution to 5 (w-2) = -10

You go to the wholesale club and buy a large bag of 12 smaller chip bags at $10.50. At your local store, the individual chip bags cost $0.99/bag. How much do you save per dozen bags by buying in bulk? $

Write an equation in slope-intercept form for the line with the slope of - 4 and x-intercept

Answer the questions about these triangles. Which is thr measure of Angle A? Which angle corresponds to Angle A. What can be concluded about these triangles?

Sam painted the walls shown. He took 12 hours to paint the walls. If Sam took the same amount of time to paint each wall, how long did he take to paint 1 wall?

The position of an object at time t is given by s (t) = 7 - 14t. Find the instantaneous velocity at t = 7 by finding the derivative.

every month, omar buys pizzas to serve at a party for his friends. In may, he brought three more than twice the number of pizzas he bought in April. If Omar bought 15 pizzas in may, how many pizzas did he buy in April

Forty-three is 7 less than twice a number. What is the number?

Suppose b = 2a-16 and b = a+2. What is the value of a?