Find input current, output voltage and power of this transformer.

A transformer has primary winding of 150 turns and secondary winding of 2500 turns. The input voltage is 120 V and the output current is 0.5 A.

Can someone please show me the formula to use for thus equation and solve. Thank you.

Power in = Power out
Power = Voltage * Current
Vin * I in = V out * I out

The ratio of the number of turns is the same as the ratio of the voltages.
Vin/Vout = Primary turns/Secondary turns

Use the equation above to determine the output voltage
120/Vout = 150/2500

Power = output voltage * output current

Input current = Power ÷ input voltage

My answers are
V out = 2000 volts
Power = 1000 watts
Input current = 8⅓ amps