Answer:
<h2>x = -7 or x = 1</h2>
Step-by-step explanation:

Answer:
its c
Step-by-step explanation:
Answer:
8.4 dollars
Step-by-step explanation:
The error is in the resolution of the proportion. In fact, the initial proportion is correct:

where x is the total cost. However, the following step of the resolution is wrong. In fact, the correct resolution is the following:
- Multiplying by x on both sides:

- Multiplying by 3.5 no both sides:

And now we can find x:

So, the total cost is 8.4 dollars.
Answer:
true
Step-by-step explanation:
Since the parenthesis do not have a negative on the outside, we don't need to distribute the negative sign. The equation is equal to each other
Hope that helps :)
Answer: the answer for a discount would be 12.32
Step-by-step explanation: