Banana Bread

1 3/4 cup flour
1 1/4 tsp baking powder
3/4 tsp salt
1/2 tsp soda
2/3 cup sugar
1/3 cup butter
2 eggs
2 or 3 bananas
1 tsp lemon
1 tsp cinnamon
1 tsp vanilla

Bake for 40 min at 350