Reduce -45/30 to the standard form

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

Find the solution of each of the following.

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )