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?

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14