Liza wants to have more than $750 in her savings account before she will leave for college. right now she has $300, and she is going to babysit to earn $12.00 an hour. how many hours will liza need to babysit before she leaves for college?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

If rt is greater than ba, which statement must be true ?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?