Answer:
c is the answer since you are trying to make the ys number (-/+) of the value the other y contains
(3) so you will multiply the first equation by -3 to be able to eliminate y
Answer:
it is a polynomial because it has more than two terms
Answer:

Step-by-step explanation:
step 1
Find the units rate of the first glacier

using proportion

step 2
Find the units rate of the second glacier

using proportion

step 3
Find the difference

Answer: $14.40
10% of $18 = $1.80 (just divide it by 10)
$1.80 x 2 = $3.60
20% of $18 = $3.60
since it’s a discount, you subtract from the original price so:
$18 - $3.60 = $14.40
317 is the answer you are looking for.