Mr. halls car used 2.2 gallons of gasoline this week. he drove a total of 37.9 miles. if the car got the same gas mileage for the entire trip. hiw many miles did the car travel for each gallon of gasoline.

How many $20 bills do you need to have to make $280

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

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.