A 15m tall tree casts a shadow that is 10m long. If a lamp post casts a shadow that is 6m long, how tall is the lamp post?

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?