7x-2=-23 add 2 to both sides to get 7x by itself
7x=-23+2 now add the right side
7x=-21 now divide both sides by 7
x=-21/7
x=-3
Answer:
She paid $610.43
Step-by-step explanation:
multiply the original price by the decimal form of the percentage:
⇒ $789.90 x .25 (25%) = $197.475
subtract the product from the original price:
⇒ $789.90 - $179.475 = $610.425
round to the nearest hundreth:
⇒ $610.425 = $610.43
