What expression is equivalent to 5y^3/(5y)^-2

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%