Plz help, write a formula that represents the number of people in the nth row (pre-calc problem, I only need the formula)

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.

When only separate discreet points are graphed it is called?

Kayaks rent for $35 per day. which expression can you use to find the cost in dollars of renting 3 kayaks for a day?