Here, AB ║ CD ; EF ⊥ AB
Number of 90 degree formed by the intersections of EF and two parallel lines AB and CD is 8
Hope this helps!
The answer is b, I’m not quite sure
A cause u gotta buy a new one instead of used or borrowing it
The filling rate is 2/5=0.4 gallons per second. So the appropriate equation is A.