A student walks 15 km in 3 hours. What is the student’s average speed? A :45 km/h
B :5 km/h
12 : km/h
18 : km/h

Explain why scientists use shared characteristics to make cladograms.

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

How many miles of water are produced if 5.43 mol pbo2 are consumed