The last time david filled up his truck with gas, he spent $27.44 for 7 gallons. if the price is the same, how much will he pay?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

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.