I hope this helps you
S=2ab+2bc+2bc
S-2ac=b (2a-2c)
b=S-2ac/(2a-2c)
Poop
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I’m pretty sure it is self explanatory because b= -0.1, c=-0.01,d=-0.001,e=0.001,f=0.01,g=0.1, and h=1
4 gallons?
The answer is 4 gallons
For 6 1/2 hours, earned money = $78
So, for 1 hour, it would be: 78 / 6 1/2 = 78 / 13/2 = 78*2 /13 = 12
In short, Your Answer would be $12
Hope this helps!