Population Dynasty is the number of people per unit of area the population density of Eastern region is 45 people per square kilometers if the region cover is 29 square km what is the population of the region

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?