Answer:
Step-by-step explanation:
The amount of the discount is the difference between the original price and the discounted price. That was ...
$22.00 -13.20 = $8.80
The percentage of the discount is the ratio of the amount of the discount to the original price. That was ...
8.80/22.00 × 100% = 40%
The price was discounted $8.80. That was a 40% discount.
Answer:
The set of natural numbers can be denoted as: {} (null set) because no natural number will satisfy the given equation.
Step-by-step explanation:
Given equation:

To find the set of natural numbers that satisfies the above equation.
Solution:
In order to find the set of solutions for the equation, we will solve it for 
We have:

Subtracting both sides by 8.

∴ 
Thus, we get only one solution for
that satisfies the given equation but it is not a natural number. -3 is an integer.
Set of natural numbers {1,2,3,4,5,6........}
Thus, we can say the set of natural numbers that satisfies the equation is a null set {}.
Answer:
80
Step-by-step explanation:
Answer:64
Step-by-step explanation: