Answer:

Explanation:
Let the total cost for selling yearbooks = 35y and total cost for selling class rings = 140r
And total cost = 35y + 140r
According to the question, the company will give picnic to the junior class if they spend at least $28000.
So, we can create the following inequality:

In this inequality:
- 35y represents the cost of the yearbooks (each yearbook costs $35, and there are y yearbooks).
- 140r represents the cost of the class rings (each class ring costs $140, and there are r class rings).
- 28,000 represents the minimum amount the junior class needs to spend.
The inequality states that the total cost of yearbooks and class rings must be greater than or equal to $28,000 for the junior class to receive the promised picnic.