A farmhouse shelters 21 animals, some are horses, and some are ducks.
Altogether there are 58 legs. How many
ducks are there?

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.