Answer:

Step-by-step explanation:
Negative and positive is negative.
Negative and negative is positive.
Positive and positive is positive.

<u>Calculations</u>:
Answer:
52.5
Step-by-step explanation:
180-75=105
105/2=52.5
Answer: The required function would be 
Step-by-step explanation:
Since we have given that
There are two real zeroes :
x = -8 and x = 5
So, we need to find the function satisfying the above two zeroes:
Let α = -8 and β = 5
So, it means it is a quadratic equation :

Hence, the required function would be 
There are 4 quarts in a gallon so multiply 4 by 5 then you get 20