Step-by-step explanation:
Multiply $78 by by 65/100 to determine the original price.
78 can be put over 1.
<u>Multiply</u><u>:</u>

<u>Simplify by dividing the numerator and denominator by 100:</u>

The original price was $50.70.
Answer:
See the attached
Step-by-step explanation:
The only function that shows x with an exponent of 1 is the one in the attachment. If the exponent is not 1, then the function is not linear.
(1/x = x^(-1))
They are variables they can equal anything. it is just an example of two different fractions who's numbers are unknown.
Answer:
$1913.34
Step-by-step explanation:
$1784 (original amount) * 7.25% (sales tax) = $129.34 Tax paid
129.34 + 1784 = Price after tax