When changing from large si units to smaller units what mathematical operation is used?

Sue danced for 15.5 minutes. Allie danced for 23.25 minutes. Carol danced for 8 minutes and 12 seconds less than Sue and Allie combined. How much time in minutes and seconds fed the girls dance altogether

A van travels 200 miles on 10 gallons of gas. Find how many gallons the van needs to travel 400 miles

Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per hour. The eastbound train travels at 90 miles per hour. How long will it take for the two trains to be 476 miles apart?

Which expression is equivalent to 7b+4b-1b? 2b 4b 10b 12b

The Johnson family has three sons, Billy, Tommy, and Bobby. Billy is as old as Tommy and Bobby together. Last year, Tommy was twice as old as Bobby was. In two years, Billy will be twice as old as Tommy is now. How old is each son?

Kennedy has a gross income of $95,000. What is her total tax due?

There are 6 buses going on a field trip. There are 30 students on each bus. When they get to the park 42 students when to the slides. 28 students went to the swings. 39 students went to the grassy area to eat lunch. How many students are left?

What is 10 times 2.50?

The sum of the three Romano brothers is 63. If there ages can be represented as consecutive integers, what is the age of the middle brother.

Which of the following is not an example of like terms? A. 2 and - 6 B. 2b and - 6b C. 2b and 2