What is the slope

A) 1/3

B) 3

C) 2

Can someone explain the elimination method to me for this problem?

Write the following as a base and exponent

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? )