Express the formula V = ar2 . H in terms of the height, H. Use that formula to find the height when the volume is 457 and the radius is 3.​

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.