To determine how much milk and how many cookies Jada needs to serve the 15 people in the book club, as well as the cost of the cookies, we can break down the problem step by step.

Step 1: Total Milk Required

Each person gets 12 ounces of milk, and there are 15 people in the club.

$\text{Total milk} = 12 \, \text{oz/person} \times 15 \, \text{people} = 180 \, \text{oz}$

Jada will need 180 ounces of milk.

Step 2: Total Cookies Required

Each person gets 4 cookies, and there are 15 people.

$\text{Total cookies} = 4 \, \text{cookies/person} \times 15 \, \text{people} = 60 \, \text{cookies}$

Jada will need 60 cookies.

Step 3: Number of Cookie Packages Required

Each package contains 24 cookies. To find out how many packages are needed:

$\text{Number of packages} = \frac{60 \, \text{cookies}}{24 \, \text{cookies/package}} = 2.5 \, \text{packages}$

Since Jada can't buy half a package, she will need to buy 3 packages.

Step 4: Total Cost of Cookies

Each package of cookies costs $4.50, and Jada needs 3 packages.

$\text{Total cost} = 3 \, \text{packages} \times 4.50 \, \text{dollars/package} = 13.50 \, \text{dollars}$

The total cost of the cookies will be $13.50.

Summary:

• Jada will need 180 ounces of milk.
• She will need 60 cookies.
• She will need to buy 3 packages of cookies, which will cost her $13.50.

Would you like further details or explanations?

Here are 5 related questions:

1. How much does one cookie cost based on the package price?
2. If the price of milk is $0.10 per ounce, how much would the milk cost?
3. How much milk does Jada need if 3 more people join the book club?
4. What if a person wants 6 cookies instead of 4, how many more packages would be required?
5. How much would Jada save if she could buy cookies in bulk at $4.00 per package?

Tip: Always round up when dealing with whole items like packages to avoid being short!