Answer:
Step-by-step explanation:
Mark has been saving up for a $200 pair of sneakers.
He just noticed that the sneakers he wants are on sale for 35% off. The value of 35% off the sneakers that he wants is
35/100 × 200 = 0.35 × 200 = 70
if his mom tells him she will pay for tax, then the amount that he has to pay for the sneakers is
200 - 70 = $130
He has $120. Therefore, he doesn't have enough money to buy the sneakers.
The amount that he needs to save is
130 - 120 = $10
