If there are 10 questions and it is 5 points, if you get a 3.75 on it how many did you get wrong?

7.5 or 7 1/2 questions wrong because if the points are worth half questions than just multiply the 3.75 by 2 since the questions MUST be worth .5 points each.

42

step-by-step explanation:

256/6=42

.632

step-by-step explanation:

6 * 1/10 = 3/5

3*0.01 = 0.03

3/5 + 0.03 = .63

2*0.002 = .002

.63 + 0.002 = .632