Answer:
Step-by-step explanation:
It is a rectangle, so both sides are equal. Thus 2x+6=5x-9
SOLVE, SUBTRACT 2x
6=3x-9 THEN ADD 9
15=3x THEN divide by 3
5=x
Plug in x to either side 2(5)+6, to get side length of 16
Then area of a rectangle is lengthxwidth=AREA
substitute what you know 16(y)=48
Divide by 16, thus y=3
1/2 mile
(1/8)*4 = 1/2 mile
subsitute x = 6 into the lengths
3(6) -7
18 - 7
11cm
(6) + 5
therefore it is a square when x = 6 because the sides are all equal
