First, open the graphing calculator using the TOOLS menu. Now try some calculations involving fractions and parentheses. Try out both the ÷ key on the keypad or the / key on your keyboard.

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.

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

Use the distance formula to find the distance between (-3,5) and (3,1)