13. 10-14
14.I can't see the whole graph, so you need to do it yourself. Add up everyone's age and divide by the amount of people on the graph. That will give you the average.
Answer:
Step-by-step explanation:
The trigonometric function;
has zeroes at 
where 
is an odd integer.
The trigonometric function; 
. This also has zeroes at where is an odd integer.
The answer is D 75% of the original volume is left.
Y=3x+6
y=mx+b 3 is slope and m is also the slope, six is b because it’s where it BEgins :)
X-y=2 (*-2) --> -2x+2y=-4
2x+3y=14
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2x+3y=14
-2x+2y=-4
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5y=10
y=2
