Which expression represents the taxable income of a married person claiming two children filing jointly who earned $90,000 in 2015? A 90000 + 8000 + 12600
B 90000 - 8000 - 12600
C 90000 + 4000 + 6300
D 90000 - 4000 - 6300

Please I need help

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

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.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20