Together charles, john, and jerry received $50. charles received $12, john received $24, and jerry received $14. what percent of the $50 did john receive?

When you answer this can you explain

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

What is 0.000008 meters in scientific notation