How do i do this?? i am sooo confused. can someone please help me??

Janet, Chrissy, and Jack want to divide their grocery bill evenly. They bouoght a apples for 90 cents each, b bananas for 60 cents each, and c cantelopes for $2.10 each. Write and simplify and expression representing the amount each person must pay.

First compute how much they paid for all that.

Total cost = 0.9 a + 0.6b + 2.1 c

Then divide the cost by 3.

The answer will be
C/3 = 0.3 a + 0.2 b + 0.7 c

You still need to know what a, b and c are to compute an actual number. That may be why you are confused.

To solve this problem, you need to first determine the total cost of the groceries. Then, you divide that total by the number of people to find the amount each person must pay.

The cost of the apples is calculated by multiplying the number of apples (a) by the cost per apple (90 cents): a * 90 cents.
The cost of the bananas is calculated by multiplying the number of bananas (b) by the cost per banana (60 cents): b * 60 cents.
The cost of the cantaloupes is calculated by multiplying the number of cantaloupes (c) by the cost per cantaloupe ($2.10): c * $2.10.

To find the total cost of the groceries, add the costs of the apples, bananas, and cantaloupes together: a * 90 cents + b * 60 cents + c * $2.10.

Since Janet, Chrissy, and Jack want to divide the bill evenly, you need to divide the total cost by the number of people (3 in this case).
The expression representing the amount each person must pay is: (a * 90 cents + b * 60 cents + c * $2.10) / 3.

Simplifying the expression depends on the specific values of a, b, and c that are given in the problem. Once you have those values, you can substitute them into the expression and simplify it further if needed.