Bills renee wants to figure out how much it costs her per year for her phone service. her monthly bill is $23.21. about how much does it cost for one year of service?

$278.52
all you have to do is multiply the monthly cost by 12( # of months in a year)

To find out the yearly amount of the bill you would multiply the monthly cost bu 12 for 12 months in a year.
23.21 * 12 = $ 278.52

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 !