Ima girl and i am bored

The function c(n) below relates the number of bushels of apples picked at a pick-your-own orchard to the final cost for the apples. it takes as input the number of bushels of apples picked after paying an entry fee to an orchard and returns as output and returns as output the cost of the apples (in dollars)c(n) = 15n + 30which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels picked as output

There are 16 tablespoons in one cup. which table correctly relates the number of cups to the number of tablespoons?

How do i create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12