A service station sells gasoline for $3.25 per gallon and diesel fuel for $3.00 per gallon. On Monday, the service station's revenue from selling a total of 131 gallons of gasoline and diesel fuel was $404.25. How many gallons of diesel fuel did the service station sell on Monday? Please Explain How. Thanks

Ateacher attaches a ball to a meter long string and whirls it around in a horizontal circle at constant speed. the teacher explains that the string is what makes the ball go in a circle. why is the string necessary? a) the string is needed to apply a torque to the ball. b) the string is needed to push on the ball to get it up to speed. c) circle motion requires an inertia which is provided by the string. d) circle motion requires a force to give it a centripetal acceleratio