Acar used 15 gallons of gasoline and traveled a total distance of 350 miles. the car's fuel efficiency is 25 miles per gallon on the highway and 20 miles per gallon in the city. which equation can you solve to find h, the number of gallons that were used on the highway?
a. 350=25(15-h)+20h
b. 25h+20(15-h)=350
c. 350= (25+20/2)h
d. 15= 350/25h + 350/20h

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave