Help me plz I have to turn this in tomorrow

Answer:
Below
Explanation:
A. 2NaNO3 + PbO ----> Pb(NO3)2 + Na2O
B. Ca3P2 + 6H2O ----> 3Ca(OH)2 + 2PH3
C. Fe2O3 + 3CO ----> 2Fe + 3CO2
D. 4NH3 + 7O2 ----> 4NO2 + 6H2O
Unfortunately I'm not very good at explaining how exactly to balance these without a visual to show you. I used to struggle with this and a channel that really helped me was "the organic chemistry tutor"! Just search up "how to balance chemical equations" and it should appear!
Hope this helps! Best of luck <3