Answer:
Step-by-step explanation:
Use the distributive property and
You’d just add up all the sides
Answer:
The price per inch is $0.26.
Step-by-step explanation:
There are 12 inches in 1 foot.
First, we need to calculate what the cost is per foot.
18.72 / 6 = 3.12
From this answer, we have to divide by 12 to calculate what the price is per inch.
3.12 / 12 = 0.26
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Answer:
4/3
Step-by-step explanation:
Match bases
remember that if
where x=x, then a=b
remember some exponential properties
ok, 1/81 and 9,hmm
1/81=81^-1
81=9^2
1/81=81^-1=(9^2)^-1=9^-2
so
9=9 so -2a=3a+10
-2a=3a+10
minus 3a both sides
-5a=10
divide both sides by -5
a=-2