In 21 and 22, use the table at the right. Model with Math Write an expression to show how much
longer the round-trip to San Diego is than the round-trip
to San Jose. How many terms does the expression have?

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation