Given that I = 4 amps when Vs = 40 volts and Is = 4 amps and I = 1 amp when Vs = 20 volts and Is = 0, use superposition and linearity to determine the value of I when Vs = 110 volts and Is = −2 amps.

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?