In a school of 309 kids, 28 kids are on the cross country team, 67 kids are on the track team, and 19 are on both. How many kids are on either cross country or track?

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=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.

The table shows the number of hours orlando spent at football practice last week. select the appropriate numbers below to complete the model to find the number of hours orlando spent practicing on tuesday and friday.