I dont know this so please help me

What is the common denominator for 3/5+3/4

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.

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?