After x weeks, Kyle has saved a certain amount. How is that amount represented?

The correct representation of the amount saved by Kyle after x weeks as 28x + 100 indicates that there is a fixed initial amount plus a variable component based on his savings per week. In this case, 28 represents the amount Kyle saves each week, and x indicates the number of weeks.

This means that each week, Kyle contributes 28 to his savings. Over x weeks, this results in a total contribution of 28x. The "+ 100" suggests that he also starts with an initial amount of 100, which he has saved before the time frame being considered. Therefore, the total amount he will have saved after x weeks is the sum of his initial savings (100) and the savings accumulated over those weeks (28x). This adds clarity to understanding how savings can accumulate over time and emphasizes the importance of both fixed and variable contributions.

The other representations do not capture both components of his savings accurately, which is why they do not effectively convey the total amount saved.