B: because she gained and didn’t decrease
Explanation:
A: 30
B:36
C:11
D: -5
So b is correct because it’s Greater
I multiplied, I converted the percentage to a decimal .42
Your answer should be 9.45.
So chance to get a black pen: 4/10=2/5
Chance to get a red pen: 1/10
Chance for the two happened at the same time
2/5 * 1/10 = 2/50=1/25
I think... I’m not very sure though
Pythagorean stack i believe its 23 on the side