Erin's family went to disney world when erin was 11 yrs old and her sister was 3. this year erin's age is double if her sister. how many years ago did the go to disney?

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

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?