Plz help fifty points

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.

What is the average rate of change for this function for the interval from x=2 to x=4 ?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827