Answer:
<em>x</em><em>=</em><em>3</em><em>.</em><em>5</em><em> </em><em>y</em><em>=</em><em>8</em>
Step-by-step explanation:
Remeber, in a rectangle, opposite sides are equal so
and
a
Subsitue 2x+1 for y.
Plug this back in to one of the equations to find y.
So x=3.5
y=8