Answer:
"A" IS THE ANSWER
Step-by-step explanation:
The answer is 1/2n-4
Multiplying a number n by 1/2 is the same as dividing that number by 2.
Answer:
18
Step-by-step explanation:
12 and 15 are both dividable by 3 and 3 apart so if you subtract 21 by 3 than you get 18