William and Katherine both earned a B on the same science test, but William actually ranked ahead of Katherine on the test. William most likely ranked higher because the teacher used a

letter-grading system based on a range of numbers.
number-grading system based on a range of letters.
number-grading system based on a range of percentages.
letter-grading system based on a range of percentages.

The correct answer is D: letter-grading system based on a range of percentages.

Explanation:

I just did the quiz and got it right.

true

explanation:

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

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