Given:
The equation
goes through the coordinates (6,5) and (-2,-5).
To find:
The values of A and B.
Solution:
We have,

It goes through the coordinates (6,5) and (-2,-5). It means these points will satisfy the equation.

...(i)

...(ii)
Adding (i) and (ii), we get


Divide both sides by 4.

Put A=5 in (i), we get
Divide both sides by 5.

Therefore, the values of A and B are 5 and -4 respectively.
Answer: 150 cups
Step-by-step explanation:
Vivian used 25 cups of shampoo every day.
To find out the amount used in 6 days therefore, you should multiply 25 by the number of days which is 6:
= Number of days * Number of cups used per day
= 6 * 25
= 150 cups
Answer:

Step-by-step explanation:
c. never.