What is a/4 - 5/6 = -1/2 pls help

The product of two negative rational numbers is always zero sometimes zero never zero

Can u guys do this ratio question. this is extremely urgent a tap is leaking water at a rage of 1l every 8 hours. how long will it take for the tap to leak a total of 300ml?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?