What math operation would i use to solve "3 below -5"?

These question are hard can you me with answers

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.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.