SOLUTION: I have to use R x B = A So Help me on how I use that for these, please What number is 40% of 200? 15% of what number is 48? 133 is 35% of what number? What percent of 357.5 is

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Question 12006: I have to use R x B = A
So Help me on how I use that for these, please
What number is 40% of 200?
15% of what number is 48?
133 is 35% of what number?
What percent of 357.5 is 71.5?
0.32 is what percent of 4?
Some of it I get, but then when I go to the next problem I'm lost. Thank You.

Answer by longjonsilver(2297)   (Show Source): You can put this solution on YOUR website!
have a look at my Lessons on this site for the Percentage ones. They will help you

Jon.