Express as a ratio as a fraction 9 out of 15 pets

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?