Help please!! this is my cousins's math homework :\ i haven't done any of this since the 7th grade

Astore sells 4 apples for $3 and 3 oranges for $4 if pete buys 12 apples and 12 oranges how much will it cost

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

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?