Answer:
1) E and F
Step-by-step explanation:
So width is x
legth Is 3x+3
Perimeter is
3x+3+3x+3+x+x
Now simplify
8x+6
Now go through each choice that equals 8x+6
Only e and f
<span>x(t-u) = 3t
dividing both sides by (t-u):
So.. </span><span><em>x = 3t/(t-u)</em></span>
