Answer:

Step-by-step explanation:

Divide 3 on both sides:

Add 1 to both sides:

Multiply by 7 on both sides:

Answer:
the 4th one
I guess
if this is the wrong answer then let me know
Answer:
81 + 81 + 10 aka 172
Step-by-step explanation:
Take the regular price, multiply it by .2, subtract that off of the regular price. What it means is 20% of the regular price is taken away from the regular price.
Answer: 410
Step-by-step explanation: