The set-up cost for a machine that attaches snaps on clothing is $1,100. After set-up, it costs $0.12 for each snap to be attached. A newer machine has come out that has a set-up cost of $1,520. With the new machine, it only costs $0.09 for each snap to be attached. How many snaps would a company have to attach to make the purchase of the newer machine worthwhile?

Arestaurant manager wanted to get a better understanding of the tips her employees earn, so she decided to record the number of patrons her restaurant receives over the course of a week, as well as how many of those patrons left tips of at least 15%. the data she collected is in the table below. day mon tue wed thu fri sat sun patrons 126 106 103 126 153 165 137 tippers 82 87 93 68 91 83 64 which day of the week has the lowest experimental probability of patrons tipping at least 15%? a. sunday b. saturday c. friday d. thursday