Summer Swim charges a $45 membership fee and $3.50 each time you visit their pool. Super Swimmers charges $6.50 each time you visit their pool with no membership fee.
a. For what number of visits will both swim clubs charge the same amount? Justify your answer using mathematics.
visits:____
b. You anticipate that you will visit the pool about 32 times this summer. Which Swim Club should you choose if you want to spend the least amount of money? Justify your answer using mathematics.