If a/c=(b-a)a/c, then what is b in terms of a and c a. 2+a b. (2+a)/c c. c/2+ac d. (2+ac)/c also, can u explain how i’m supposed to solve this

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? )