What is 0.82 equivalent to as a percent

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?