For which pair of function is (g*f)(a)=|a|-2 1. f(a)=a^2-4 and g(a)= sqaureroot a 2. f(a)= 1/2a-1 and g(a)=2a-2 3. f(a)=5+a^2 and g(a) = sqaureroot (a-5)-2 4.f(a) =3 -3a and g(a)=4a-5

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?