3) Sarah wants to buy a snowboard that has a total cost of $580, including tax. She has already saved $135 for it. At the end of each week, she is paid $96 for babysitting and is going to save
three-quarters of that for the snowboard.
a) Write an inequality that can be used to determine the minimum number of weeks Sarah
needs to babysit to have enough money to purchase the snowboard.
b) Determine and state the minimum number of full weeks Sarah needs to babysit to have
enough money to purchase the snowboard.