For what value of x is the rational expression below equal to zero?
x-4
x-6

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

I’m vary good with science if you need with that

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post