C. 200
They earn $2.50 per box of markers, meaning that to make $500 they have to sell 200. [500/2.5=200]
Answer:

Step-by-step explanation:


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First step multiply your terms in your first expression just to the 1 in the second expression like so:


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Anything times 1 is that anything.
That is,
.
Now we are going to take the top expression and multiply it to the -x in the second expression.
. We are going to put this product right under our previous product.


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We still have one more multiplication but before we do that I'm going to put some 0 place holders in and get my like terms lined up for the later addition:


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Now for the last multiplication, we are going to take the top expression and multiply it to x^3 giving us
. (I'm going to put this product underneath our other 2 products):


---------------------------------

I'm going to again insert some zero placeholders to help me line up my like terms for the addition.


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----------------------------------------------------Adding the three products!

A.) 4^2
B.) 5^4
C.) 3^1 x 7^4
D.) 2^2 x 9^4
Hope this helps you!!!!!!
So each candy bar is .50 and they want to reach 455.00
we see how many .50's can go into 455.00
we notice that .50 times 2=1
so if we multiply the 455 1's by 2 we get how many candy bars to sell or
910.00
Answer:
AC ≈ 67.9
Step-by-step explanation:
15² = 9 (3x + 1 + 9)
225 = 9 (3x + 10)
225 = 27x + 90
135 = 27x
x ≈ 19.29
AC = (3x + 1 + 9)
AC = 3 (19.2857...) + 1 + 9
AC = 57.857... + 1 + 9
AC = 57.857... + 10
AC ≈ 67.9