70 points: Suppose that is a one-to-one function, and is it's inverse. Suppose also that and . Then which of the following do we NOT know to be true?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?