For culinary class pls halp

1 3/4 Teaspoon baking powder - how much is this? (I don't have a 3/4 teaspoon!)
pls help
I don't wanna fail my baking test YvY

also:
how could u improve this cupcake recipe? how can u make this taste better?
1 1/2 cup flour
1 3/4 Teaspoon baking powder
1 cup of sugar
1/2 cup oil
1/2 teaspoon vanilla extract or vanilla essence (optional)
2 eggs
1/2 cup milk
1 Tablespoon yogurt (optional)