A local dealer has two video stores in two one on Foothill Drive and the other on Grand Avenue. The Foothill Drive store does 70% of the dealers business in the town and the Grand Avenue does the rest. In the Foothill Drive store 40% of all rentals or DVDs. At the Grand Avenue store 30% of all rentals are DVDs. If a customer is selected at random what is the probability that she will rent a DVD? This could be from foothill Drive or Grand Avenue

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?

What graph represents an even function

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.