The product of 3 and a number x is at most 21

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Which strategy is used by public health to reduce the incidence of food poisoning?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6