Podrian ponerme 10 ejercicios de terminos semejantes resueltos porfa :(

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

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36