Acar detailing company charges $30 plus $18 per hour. another company charges $25 plus $20 per hour. what is a reasonable domain for the two functions?

What is a reasonable domain for the two functions?

x > 0

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

where's the diagrams?