The sum of two numbers is 23 if one of the number is halved the sum will become 17

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute