Answer:
Choice C
Step-by-step explanation:
Since every group has 111 people, and choice a and b talk about different group sizes, a and b are wrong.
Hopefully this helps.
Answer:
.26
Step-by-step explanation:
P(C) = .6*.3 + .4 *.2
= .18+.08
= .26
Answer:
6.5%
Step-by-step explanation:
If you take 31.20 and divide it by 480, you get .065, which would then be converted into percentages by multiplying it by 100 (6.5%).
Answer:
4y
Step-by-step explanation:
every part of the equation can be evenly divided by 4 and y
so this leaves you with 4y (-4 + 3y - 1)
Because the last number of the x and y is 0 so it would be i the bottom