i dont really know but im guessing use ratios. like 4:total volunteers
or something like that
Answer: graph №2.
Step-by-step explanation:

Answer:
A,D,E
Step-by-step explanation:
Answer:14
Step-by-step explanation:
A nickel is 5 cents (20% of dollar)
and a quarter is 25 cents (25% of dollar)
We have given a pile of 42 coins worth of $4.90
Let x be the no nickels and
y be the no of quarter
therefore
x+y=42 -----1
+
=4.90 ---2
Solving
we get
x=14 & y=28
Therefore no of nickels is 14 & no of quarters is 28
Cindy used 17.25 because 15 × .5 = 2.25 and if you add it to 15 ypu get 17.25