36/42
42 - 36 = 6
-6
It is 42 - 36 = 6 hours.
42
78
36 x 42 = 1512
Half way between 36 and 42 is (36 + 42) ÷ 2 = 39.
36, as percentage of 42 is 100*36/42 = 85 5/7%
36/42=0.85 0.85x100= 85%
78
If you're looking to solve for x, you can do so as follows: x2 + 12x - 6 = 0 x2 + 12x + 36 = 42 (x + 6)2 = 42 x + 6 = ± √42 x = -6 ± √42