Step-by-step explanation:

<em>hOpE</em><em> </em><em>iT</em><em> </em><em>hElPs</em><em> YoU</em>
<h3><em><u>I</u></em><em><u> </u></em><em><u>nEEd</u></em><em><u> bRainLIeST</u></em></h3>
Answer:
B. 171
Step-by-step explanation:
The answer is 4.
36/63 = 0.57
4/7 = 0.57
Let's find out.
David needs to score an average of 145 across all four games, so first we do:
145 × 4 = 580
Then we add all the scores he currently has:
139 + 143 + 144 = 426
Then we subtract 426 from 580 to find out how much he needs to score for his fourth:
580 - 426 = 154
David needs to score 154 on his 4th game to have an average score of 145 for all 4 games.
I don’t know if this is a proportion but it’s a fraction....