Answer:
4 years
Step-by-step explanation:
Look for the year where the green bar is higher than the red bar.
ANSWER: B)198
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Let f be the height of the fir trees
Let p be the height of the pine trees
We know from the problem that
f + p = 21 and 4f = 24 + p
rearrange the 2nd equation to get p = 4f - 24 and substitute into the other equation
so...
f + 4f - 24 = 21
5f - 24 = 21
5f = 45
f = 9 - height of the fir tree
substitute back into the 1st equation
9 + p = 21
p = 12 - height of the pine tree
Answer:
t = -1
Step-by-step explanation:
-4 = 2t - 2
2t = -2
t = -1
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Answer:
Step-by-step explanation:
4^-3
=1/4^3
=1/64
