4 5/2 is 6 1/2 in simplest form!
Answer:
d.
Step-by-step explanation:
I got -2(2x-3) but it should be C.-4x-2
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>