Each good worker can paint my new house alone in 12 hours. each bad worker can paint my house alone in 36 hours. i need my house painted in 3 hours. if i can only find 3 good workers, how many bad workers must i also find in order to have my house painted on time?

if u get it right i will mark u brainlist

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.