I think this is a point.
a point is a location. it is defined as having no dimensions.
Answer: 13
Step-by-step explanation:

add 21 both sides

divide both sides by 7

So more than 13 cars
Answer:
The parking garage went from charging 4$ an hour to 6$ an hour.
there is a 50% increase
Step-by-step explanation:
Answer:

Step-by-step explanation:
Simplify
The applicable relation is
... selling price = cost + markup
You have not said what the base is for the markup percentage. If markup is 75% of the cost, then we have
... markup = 0.75×cost
... cost = markup/0.75 = 3237.50/0.75 = 4316.67
Then the selling price is
... selling price = $4316.67 +$3237.50 = $7,554.17
_____
If the markup is 75% of the selling price, then we have
... markup = 0.75×selling price
... selling price = markup/0.75 = $3237.50/0.75 = $4,316.67