I'll use arithmetic series to find it.
First two-digit number divisible by 3 is 12, last such number is 99. Every 3rd number is divisible by 3.
So,

<u>There are 30 such numbers.</u>
Answer:
8
Step-by-step explanation:
32-jessica(8)-garret(8)=16, If John eats 8 more cookies, then there are only 8 cookies left.