A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours?

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

What could explain what happened when the time was equal to 120 minutes

Can someone me with this problem i don't understand i need