Before recess, Marcy has math class for 1 hour and 50 minutes. Recess lasts for 30 minutes and ends at 11:55 A. M. What time does her math class start?

11:45 - 30 = 11:15

11:15 - 1 hr: 10:15

10:15 - 50 = 9:25

her math class starts at 9:25

c

step-by-step explanation:

c

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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