Find the height of a cone with a volume of 150in3 and a diameter of 20in

Volume = PI x r^2 x H/3

fill in the known information:

 150 = 3.14 x 10^2 x H/3

150 = 3.14 x 100 x h/3

150 = 314 x h/3

314h = 150x3
314h = 450

h = 450/314

h = 1.433    ( round answer as needed )

Do the math. she originally had 50 dollars on her gift card and she had 12 dollars left on her gift card after she finished her shopping spree. if you subtract 50 minus 12 you get thirty eight dollars as your answer. so therefore, ciara spent 38 dollars total o