Answer:
D)150 ≤ w ≤ 500
Step-by-step explanation:
Let be the number of word in Kylie's essay.
We know that the essay has to have a minimum word count of 150, so the length of the essay must be greater or equal than 150 words; remember that in mathematics we say greater or equal with the sign: ≥, so we can express the statement as:
Which is equivalent to
We also know that the essay has to have a maximum word count of 500 words, so the length of the essay must be lest or equal than 500 words; remember that we can say the same using the symbol ≤, so we can express the statement as:
Now, we can join our tow inequalities in a compounded one:
