Rob is saving to buy a new MP3 player. For every $11 he earns babysitting, he saves $9 On saturday, rob earned $66 babysitting. How much money did he save

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?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet