The size of the bookstore is classi ed as Small, Medium and Large. A double sampling was performed to esti- mate the total sales of a certain book last month in the center county region, which has 500 bookstores. In the 100 book- stores selected randomly in the rst phase, 50 are small, 30 are medium and 20 are large. Suppose a strati ed random sample of 10 small, 6 medium and 4 large bookstores are carried out, the sales of the book title are

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

hello! just here for points! though i wish i knew!