EXERCISE 8.3 loss per cent in each case.
1. Tell what is the profit or loss in the following transactions. Also find profit per cent or
A refrigerater bought for 12,000 and sold at 13,500.

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? )