D) 180 because there are 180 possible combinations for the marbles to be picked out
Answer:
-40%
Step-by-step explanation:
NV = new value
OV = old value
percent change = (NV - OV)/(OV) × 100%
percent change = (30 - 50)/(50) × 100%
percent change = -20/50 × 100%
percent change = -40%
Please restore my faith in humans and try to understand this concept
0 and 5 can be in the one's place of a number that has 5 as a factor.