You can prove that a=5, b=3, 5=3+2 and a=b+2.
The answer is D because a gas is like carbon dioxide and stuff like that a liquid is something that can take shape of whatever you put it in and a solid Is it stays the shape it was originally put in
The discount given on the cost of the meal is $15
<h3>How to calculate tax on a given price</h3>
According to the question, we are given the following information
The original cost of the meal = $75
Off coupon = 20%
Required
The number of coupons given
coupon amount = 0.2 * 75
coupon amount = $15
Hence the discount given on the cost of the meal is $15
Learn more on discounts here: brainly.com/question/24304697
