What fraction of a circle does the angle turn through?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?