W The following situation involves a rate of change that is constant. A gas station owner nds that for every penny increase in the price of gasoline, she sells 80 fewer gallons of gas per week. (a) Write a statement that describes how one variable varies with respect to the other and give the rate of change numerically (with units). (b) Use the rate of change rule to answer the following: - How much more or less gas will she sell if she raises the price by 8 cents per gallon? - How much more or less gas will she sell if she decreases the price by 6 cents per gallon