Answer:
14. A. Commutative Property of Addition.
15. D. k=54
Step-by-step explanation:
6 + 9 = 9 + 6 is an example of the Commutative Property of Addition so that is your answer.
k + (-12) = 42. What you do is add the 12 to both sides to get your answer.
k=54 is your answer.
She has 67% of the pencils.
Chester:Mary = 2:4 = 1:2
So, in the simplest case:
If Chester has one pencil Mary would have two.
There are three pencils.
Mary has two.
2/3 = 0.667 = 67% (rounded)
combine like terms: 38 < x + 10
subtract 10 from both sides: 28 < x
x > 28
Answer:
Step-by-step explanation:
you want maximum height reached?

Answer:
$n + $20
Step-by-step explanation:
Jim already has $n, and his mom has given him $20. We know we are not taking $n and subtracting $20, since his mom is adding that on to what he already has, we know we are not dividing, not multiplying but adding.
Conclusion : To find how much money he has now you would use the expression $n + $20
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