Solve the constants a and b so that this becomes continuously in all real numbers

The system of equations graphed below has how many solutions?

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided

Yvaries inversely as x. y =12 when x=5. find y when x=4