Answer:
2.Janice should know the area of her apartment that requires painting. This should be followed by calculating the area that 1 gallon of the paint can completely paint.Dividing the total area of the apartment to be painted with the area painted by a single gallon can will determined the number of gallon cans to buy for the apartment painting.
3. The approximate distance covered by 20 blocks is 1 mile.This is an example of Manhattan.A city planner can use this estimate to know the distance of a single city block by dividing 1 mile with 20 blocks.She can use 1 mile.
