If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Peyton's field hockey team wins 4 games out of every 7 games played. her team lost 9 games. how many games did peyton's team play?