(10+12x)(15x+1) please help me

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

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

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?