Mr. chen goes to the post office to buy small and large boxes. the post office has 10 small boxes and 9 large boxes in stock. he needs at least 4 boxes in each size. mr. chen will buy 15 boxes at most.

mr. chen buys 9 small boxes. how many large boxes could he buy?

choose all answers that are correct.
a: 3
b: 7
c: 6
d: 4
e: 5

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?

Select the number of ways in which a line and a circle can intersect

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?