Write a function rule to represent the situation. the total cost C for g grams of lithium if each gram costs $4.35
Write a function rule using C and g as variables.
(Type an equation.)

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.