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!! :)

i think is g(1)=-1.

hope that i can

this is answer of 144 cubic meters