The square of a number exceeds that number by 12. what are the two possible solutions?
3 or -4
3 or 4
-3 or 4

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

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?