Sean used cross multiplication to correctly solve a rational equation.

The personal identification number that students need to apply for federal student aid

To safely control the traffic flow and protect workers near public roadways and moving construction equipment use you could use

Which labels do x and y represent? x: scattered bundles y: multiples of four or five x: scattered bundles y: multiples of three x: bundles in a ring y: multiples of four or five x: bundles in a ring y: multiples of three