Broadbase Concrete Company charges customers $125 for a service call, plus $15 per cubic foot of poured cement. If f represents the number of cubic feet of cement ordered, which of the following expressions could be used to calculate a customer’s total cost, in dollars?

Candice uses the function f(t)=t+100−−−−−−√ to model the number of students in her after-school program. the variable t represents days and f(t) represents the number of students. how many days does it take for there to be 15 students in her program? a. 225 days b. 125 days c. 325 days d. 115 days