In order to solve the two order inequality, the two equations to be solved divides the cartesian plane into two half planes.
The intersection of the two inequalities gives the set of the points that satisfies both the inequalities. Thus, the solution of the two order inequality can be obtained by the intersection of the two half planes.
1. 30 MPH (divide hours (4.5) from miles (120)) 2. $55.80 (divide fencing per cost (8) from cost (12.40) to get how much it costs per foot (1.55) then multiply it by how much feet you need (36))
