I think it would be abdce?
Answer: 410526 books
Step-by-step explanation:
Let x equal the total number sold.
x × 0.076 = 31,200
x = 410526 books
It Is the number x2, then +1. so 30x2+1
Answer:
A = choosing a red marble
B = choosing a green marble
Probability of A happening = P(A) = 5/(3+5+4) = 5/12
Probability of B happening = P(B) = 4/(3+5+4) = 4/12
Probability of either happening = P(A) + P(B) = 5/12 + 4/12 = 7/12
The key word in their question is red OR green and that is why we add the two probabilities. If they ask the probability of them both happening (if they said red AND green), you would multiply P(A)*P(B).