Make bottom number same
6 and 54
common muultiplie is 54
multiply 5/6 by 9/9
45/54-5/54=(45-5)/54=40/54=20/27
6.4 kilometers an hour<span />
Answer:

Step-by-step explanation:
How do we find the line that's perpendicular to another?
We find the negative reciprocal. So for example if our slope is 2, the negative reciprocal would be
.
It will take 12 truckloads to fill up one warehouse. Hope this helps.
Answer:
8 liters
Step-by-step explanation:
If the sum of 2 + x = 10,
then you subtract 10 - 2 = x,
to get x = 8