Find the values of x and y please!

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.