David's score on his fifth test would be an 87. If you add up all the scores from his first to his fourth test, it would 363. However, since there are five tests, in order to get a 90 percent, the sum of all five test scores would be 450. 450 - 363 = 87.
Answer:
450
Step-by-step explanation:
Answer:
The answer to your question is: Yes, 2x + 1 is a factor of the polynomial
Step-by-step explanation:
See the picture please