Olivia pays 4 quarters for chips and 12 quarters for soda. How many dollars does she pay in total?
4 quarters equals to 4 / 4 = $<T>divide(4, 4)=1.0
12 quarters equals to 12 / 4= $<T>divide(12, 4)=3.0
She pays 1 + 3 = $<T>add(1, 3)=4 in total.
