Plz help me need answer

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?