What fraction of 100g is 30g? There is 56g of sugar in 100g of cereal bar. How much sugar is in 30g?

Earths energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your homes electricity, and explain why you chose that source. can someone give me some ideas, i’m kinda confused.