The yearly cost of a life-saving cancer treatment is growing exponentially. If the
current cost is $3,500 per year, which of
the following functions could represent the
annual cost of this cancer treatment in x years

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same