The GDP of the People's Republic of China from 2006 to 2015 is shown in the scatterplot below. The line of best fit for the data is also shown. For 2010, the actual
GDP was approximately how much lower than the value predicted by the line of best fit?

A) $4,100,000,000
B) $390,000,000,000
C)$4,000,000,000,000
D) $6,400,000,000,000

Whats the name of the vertical axis

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.