Apply the distributive property in reverse to create am equivalent expression

1.) 16a+8b=
2.) 25g+15=
3.) 24f+16=

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

How many solutions does the nonlinear system of equations graphed bellow have?