(Best Answer will be marked Brainliest) 1. A contractor charges an initial fee of $50 and then 225 for every three days of work it takes to complete the project. Identify the rate of change and describe it in terms of the problem.

2. A farmer wants to predict how many total apples his tree will produce. The tree already has 10 apples when the farmer starts recording his data. On the sixth day the farmer records 20 apples, and on the 18th day, he records 30 apples. Identify the rate of change and describe it in terms of the problem.