The price of dance lessons depends on the number of lessons (x) you choose to take. If you take up to 4 dance lessons, the cost is $40 per lesson. If you take more than 4
and up to 8 lessons, the cost is $30 per lesson. Finally, if you take more than 8
lessons, the cost is $25 per lesson.
Identify the piecewise function that correctly models the total cost for dance lessons
if x lessons are taken.