Two trees are same girth with different height the volume of the shorter tree is estimated to be 142 ft.³ how can you use cavalier principle to find the volume of the second tree

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.

Let f(x) = x + 2 and g(x) = x2 + 4. find f(g(f(