The product of a non-zero rational number and an irrational number can always be written as
a fraction.
a terminating decimal.
a non-repeating, non-terminating decimal.
a repeating decimal

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