Find the smallest number by which 16384 be divided so that the quotient and maybe a perfect cube

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?