The width of a rectangular is 12 units. can the perimeter x of the rectangle can be 60 units when it's length y is 18 units

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.