Chef pierre can do something unique. using a secret process, he can bake a nearly perfectly spherical pie consisting of a vegetable filling inside a thick crust. the radius of the whole pie is 12 cm, and the radius of the filling is 8 cm. what is the volume of the crust alone, to the nearest unit? use p = 3.14.

168

step-by-step explanation:

i am pretty sure that the answer is 168

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x