a entrepreneur buys some padlocks. Each one cost 5.50 and resells online for 6.22.What is the markup percentage?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years

If value of cos330° is √3/2 then find tan165°.