Raul bought a soft drink and a sandwich for $9.90. what is the price of each if the sandwich cost 3.5 times as much as the soft drink?

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

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.

Write the point slope form of the equation of the line passing through the points (-5, 6) and (0.1).