#15(A)
First Bike
$380 - $190 ($380 * 0.50) = $190
2nd Bike
$380 - $114 ( $380 * 0.30) = $266
$266 - $53.20 ($266 * 0.20) = $212.80
#15 (B)
Eliza should buy the first bike because it is cheaper. $190 < $212.80
#16
$57 + $28.50 ($57 * .50) = $85.50
Isolate the variable x.
1-2x=-x-3
1=x-3
x=4
Answer:

<h3>4 is the right answer.</h3>

<h3>8 is the right answer.</h3>
Answer:
8<em>x</em> + 25
Step-by-step explanation:
In the second photo.
Answer:
63.6 feet
Step-by-step explanation: