From a shipment of 400 light-bulbs, a sample of 80 was selected at random and tested. if 32 light-bulbs in the sample were found to be defective, how many defective light-bulbs would be expected in the entire shipment?

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?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy