A bag contains 120 total marbles. Some are red and the rest are black. For every 8 total marbles, 3 of them are red .

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents