This is the concept of business mathematics, given an inflation rate of 3%, that has modeled the price of items using the function c(x)=1.03x, the cost of the refrigerator in 3 years will be as follows; cost after 1 year: c(1)=1.03*1500 =1545 cost after 2 years c(2)=1.03*1545 =1591.35 the cost after 3 years will be: c(3)=1.03*1591.35 =$1,639.09