What is 7/8 as a fraction

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

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