Mr johnson's students want to know his age. He tells them that this year his age is a multiple of 9, and next year it will be a multiple of 4. What is his age?

He is 27 years old.

Step-by-step explanation:

27 is a multiple of 9 (9 x 3)

28 comes after, and is a multiple of 4 (4 x 7)

Hope this answer helps you!! :)

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

i believe that the answer is

b. y-1=-2(x-4)

hope this !