A 6V battery is connected across a 2kiloohms resistor a how

A 6V battery is connected across a 2kiloohms resistor.

a. how many electrons per second flow through the circuit

b. how many joules of heat are produced for each electron?

c. If the circuit operates for thirty mins, how many mles of electrons will have flowed through the resistor?

d. What voltage would the battery need to deliver for the power to be 100W?

a) 1.876 * 10^16

b) 9.6*10^-19 J

c) 3.375* 10^19

d) 447.213 V