True or false? an airplane is flying west at 200 km/h. two hours later, it is flying west at 300 km/h. its average acceleration is 100 km/h2.

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