Last year, austin, texas received 23.5 inches of rainfall. this year, austin received 21.2 inches of rainfall. find the percent of decrease in the number of inches of rainfall. round your answer to the nearest tenth of a percent, if necessary.

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? )