The equation of Line A is y= 7x + 15. Line B is parallel to line A and passes through the point (4,37). What would be the solution to the system of equations represented by Line A and line B?
A. The system of equations had no real solutions
B. X= 6, y = 51
C. X =9, y=78
D. The system of equations has an infinite number of real solutions

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0