Nine teams are to play against each other once in a tournament. How many matches will be playef

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?