Sara Beth charges two different tutoring rates. Rate A is a one-time fee of $10 plus $10 per hour. Rate B is $12 per hour. What are the least number of hours she must tutor to make Rate B the better-paying tutoring rate?
A.
4 hours
B.
5 hours
C
6 hours
D
7 hours

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

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?