The approximate value of 5.1 million x 2.2 thousand is? use scientific notation

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?