Alimited number system uses base 12. there are at most four integer digits. the weights of the digits are 12^3, 12^2, 12, and 1. special names are given to the weights as follows: 12 = 1 dozen, 12^2 = 1 gross, and 12^3 = 1 great gross. (a) how many beverage cans are in 6 great gross + 8 gross + 7 dozen + 4? (b) find the representation in base 12 for 7569 10 beverage cans.