The length of a rectangle is 4ft. greater than the width. If each dimension is increased by 3, the new area will be 45 square feet. Find the dimension of the original rectangle.

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? )