Answer:
$140
Step-by-step explanation:
To find the original price of the dress, we need to subtract the sales tax from the total price that Sally paid.
Let's assume the original price of the dress is "x" dollars.
7% = 0.07
We have:
x + 0.07x = 149.80
1.07x = 149.80
x = $140
So, the original price of the dress was $140.