Rolling a six sidded die and getting a I or 5

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

98 point question what is the record for most points in one