If the sea level raise 4mm/year what will the sea level be in 75 years

Ared balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. a blue balloon starts at 12.4 meters off the ground and rises at 1.5 meters per second. when will the balloons be at the same height?

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles