Bill has overdrawn his account by $15. there is a $10 service charge for an overdrawn account. if he deposites $60, what is his new balance?

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?