To purchase 11,400 worth of lab equipment for her business, Martina made a down payment of 1300 and took out a business loan for the rest. After 2 years of paying monthly payments of 447.65 , she finally paid off the loan.

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

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.

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.