Please help me I will give you extra points and whoever the first one to answer I mark you with the brain thing. 9

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Which expression is equivalent to -12(3x-3/4)