20v^8x^18 is the answer to your question
If I'm interpreting this question correctly, then you want to know the tax per dollar. In order to find that, you need to find the percentage of $420 that equals $60. So,
420x = 60
x = 60/420
x = 0.1429 (rounded)
So, the tax rate would be this value multiplied by 100%.
0.1429 x 100% = 14.29%
For this case, the first thing to do is define a variable.
We have then:
- <em>x: the monetary value of that 120 square foot piece of plastic wrap
</em>
We write now the proportion that models the problem.
We have then:

From here, we clear the value of x.
We have then:

Calculating we have:

Answer:
the monetary value of that 120 square foot piece of plastic wrap is:

Answer:
$5x + $4y ≤ $120
let x = 10
y = 5
$70 ≤ 120
Step-by-step explanation:
Note that
> means greater than
< means less than
≥ means greater or equal to
≤ means less than or equal to
the total amount Shanley has is $120. She can spend less than this amount or the amount exactly. So, the inequality sign to be used is ≤
$5x + $4y ≤ $120
let x = 10
y = 5
(50) + 20 ≤ 120
$70 ≤ 120