The function C gives the cost, in dollars, to shred w pounds of confidential documents of a company. Interpret the meaning of the following math sentence in the context of the problem. C'(500) = 80.

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

This is different from the first one can someone me

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups