2x-y=3 -4x+8y=3 what’s the common solution

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Find the maximum value of p= 4x + 5y subject to the following constraints :

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.