Abusinessman was comparing his company's profits for two consecutive months. in november, n, were 0.04 thousand dollars more than in december, d. the two months had a combined income of 3.15 thousand dollars. which system of equations could be used to determine the amount of profit for each month, in thousands of dollars? a)n+d = 3.15 n+0.04=d b) n-3.15=d d+0.04=n c) d-3.15=n n+0.04=n d)n+d=3.15 d=0.04=n