For smart people only 1. St. Joseph's student council sold track pants and sweatshirts as a fundraiser. The
track pants cost $30 each and sweatshirts cost $25 each. In one week, they sold 21
items for a total of $590. How many track pants and sweatshirts did they sell?
(Solve algebraically using SUBSTITUTION.)

Which function has the domain x> -11

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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.