Answer:
4
Step-by-step explanation:
If the gas tank holds 5 liters and you have 20 liters, then 20/5 = 4 times it will fill it up.
Given the polynomial expression:
(y + 5)²
(y - 5)(y + 5)
Let's simplify each of the given expression:
a.) (y + 5)²
The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.

We get,


b.) (y - 5)(y + 5)
To be able to simplify the following expression. We will be using the formula for the difference of two squares.

We get,

Yes it is the same. 1/4 +1/4 = 1/2. so 9/10-1/2=9/10-1/2
The answer is c.) of the 6 grade students surveyed, 12% bring their lunches to school. suppose 24 6 graders do this. how many 6 graders are at school?