You are planning to hold a Halloween costume party and need to prepare. Examine the following questions and find the solution that will make your party a success!

Invitations
Invitations are sold in packages of 8 for $2.19. How many packages of invitations will you need to buy to invite 30 guests?

Plates
You can purchase 25 paper plates for $1.69. How much will it cost you to provide plates for the 30 guests?

Drinks
We need to figure out how much punch is needed to serve the 30 guests, 450 mL each.
You are going to make Goblins' Punch. The recipe calls for 1 L of orange juice, 300 mL of pineapple juice, 500 mL water, 1 cup of sugar, 3 L of ginger ale and 4 oranges.
Start by figuring out the total liquid in the punch. How many mL of punch will this recipe make?

Drinks
If the 30 guests will consume 450 mL each, how many times do you need to multiply the recipe to ensure enough punch for all?

Candy
1.5 oz of M&M's is plenty for each guest. How many pounds of M&M's will you need to buy to make sure that all 30 guests can have 1.5 oz. each?

Pizza
Each large pizza is cut into 9 slices. How many pies are needed to provide 2 slices for each of the 30 guests?

Dancing
We want to have music to last throughout the party. Each CD will play for an average of 40 minutes. How many CD's are needed to ensure 3 hours of music?