Which equation represents a line that is perpendicular to line MN? A:y=-1/4x+9

B:y=1/4x+6

C:y=-4x-7

D:y=4x-6

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

When y’all answer can y’all explain too !