420x6/7 = 360 starting amount
420-360 = 60 interest
60/360 = 16.67%
1 is a depressant, but a specific drug is alcohol and 2 is a hallucinogenic such as LSD or ecstasy
The correct answer is C. viscosity.
You can check the viscosity of the brake-fluid with using a voltmeter. You can see that by using the voltmeter and read on it the volts, the bigger the voltage the bigger the moisture in brake-fluid, thus less viscosity.
