Is 4/20, 5/25, and 6/30 all equivalent?

42 students ran in a race. a third of them dropped out in the first half of the race. only a fourth of the remaining runners actually did complete the race. how many students finished the race? (Check Work Required)

expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away.

James practice piano for 48 minutes. Alisa practice for 5 times as long as james how many minutes did Alisa practice? How many minutes in all did james and Alisa practice? Write an equation to model your work.

50 yards of tape is needed to pack and ship 100 packages. you have a roll of tape that is 2000 inches long. about how many yards do you have? a) 28 yards b) 50 yards c) 56 yards d) 67 yards

Given complex numbers u and v below, what is uv u=7i V=6-i

During your first week of training for a marathon, you run 10 total miles. You increase the distance you run by 20% each week. How many miles do you run during your 12th week of training?

20 ounces to 25 ounces find the percent of change

How to find out how much you pay if there was a sale tax?

How can you find two ratios that describe the same relationship? Give an example to support your explanation.

Ye has his own business. He checks his sales receipts three times a day. One day, his afternoon sales eere $50 more than his morning sales, and his evening sales were three times his afternoon sales.