Answer:
I Dont understand
Step-by-step explanation:
Answer: x-7
Step-by-step explanation:

Answer:
Not normal, because we expect fewer than 10 children to redeem the coupon.
Step-by-step explanation:
Answer:
first you would find the sum of all the people who DONT have grey hair (15)
5:15 or if simplified it would be 1:3 pls mark brainliest if correct :D