Mrs. Collins is going to plant her garden. She purchases 4 tomato plants for $2.59 each, a package of watermelon seeds for $1.87, and a jalapeno plant for $3.88. How much will Mrs. Collins spend on seeds and plants for her new garden?

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.