Ramon bought a dozen of ears of corn for $1.80. what was the cost of each ear of corn?

$6.67; One dozen means there are 12, so you just divide 12 by the total cost, $1.80, and you get your answer.

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !