Does any one know the answer to 28=3m+-7m? i don't know the answer and i tried a thousand times, i need the answer to night. show your work.

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t