Hot dogs are sold by the pound. some are 8 to 1 , 4 to 1, or 10 to 1, meaning there are that many hot dogs in one pound. if you have a pack of 10 to 1 hot dogs and want to sell them at a fundraiser and the cost you $3.60 per pound, how much should you charge for hot dog if you want to have a food cost of 30%.

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12