How mathematically adept are you?

10%

Brian solved 9 of the 15 problems he was given as homework. What percentage of the problems are still unsolved?

40%

35%

20%

25%

Dental fillings have a long history. Archaeological findings in Slovenia show that 6,500 years ago, cavities were filled with beeswax.

Dental fillings have a long history. Archaeological findings in Slovenia show that 6,500 years ago, cavities were filled with beeswax.