Answer:
B
Step-by-step explanation:
First you find the amount of people at the reunion which was 80. Then you find 25% of 80. 25% of 80 is 20. The only age group with 20 people is the 20-29 year olds.
Answer:
80
Step-by-step explanation:
10- w = 90
w = 90 -10
w = 80
For the first equation, I put it in y=mx+b form, so y=-3x-9
the second one is x=4
hope i helped