What is the hight of a square pyramid with 20 cm whats the volume​

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Find the cosine function that is represented in the graph.

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?