The cellular phone service for a business executive is $35 a month plus $0.40 per minute use over 900 min. for a moth in which the executives cellular phone bill was $105.00, how many minutes did the executive use the phone?

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