30 percent of a sum of money is 27p find 10 percent of the money

This question awards 100 ! i really don’t want to fail i will also mark you !

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each