Artem drives 12.6 miles in 12 minutes. He passes a sign which gives the speed limit as 50 mph. By how much, in mph, did Artem's average speed exceed the speed limit?

Mph is miles per hour. So take 12.6 miles and divide by 12 min (need to convert to hours)
12 min is .2 hours
So 12.6/.2 gives a value of 63.
63-50 is a value of 13.
This means Artem is driving 13 over the speed limit of 50mph.

Iwould say false, not positive but if prices went up for both stores, technically there will be less buyers?