Answer:
Step-by-step explanation:
Yes as the x term is to the first power and is not raised to a larger exponent.
Answer:
$9.00
Step-by-step explanation:
If the price is at 30% discount, this means it is 100-30 = 70% of the original price.

Hence, original price is $9.00.
(-7,-8) is the center and 8 is the radius.