HELP! Which system of equations is equivalent to the system of equations shown?
x - 6y = 3
4x - 8y = 4

A) 5x - 14y = 7 and 2x - 12y = 6

B) 5x + 14y = 7 and 2x - 12y = -6

C) 5x - 14y = 7 and 2x + 12y = 6

D) 5x - 14y = 7 and 2x - 12y = -6

I need an explanation on how you got the answer please! (30 points)

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .