Answer:
$400
Step-by-step explanation:
Add The two things together
325+75= 400
Answer:
A
Step-by-step explanation:
Z is the same as the answer to the equation so if you add 18 and 96 together you will get z
also sum means adding

Step-by-step explanation:

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Answer:
8
Step-by-step explanation:
3x is a varable and -1 is an integer
Answer:
56.76% probability that it came from store A
Step-by-step explanation:
Bayes Theorem:
Two events, A and B.
In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.
In this question:
Event A: Defective.
Event B: Store A.
36% of the sales are from store A
This means that 
7% of the DVD players sold at store A are defective.
This means that 
Probability of a defective DVD:
36% come from store A, and of those, 7% are defective.
100 - 36 = 64% come from store B, and of those, 3% are defective. So

What is the probability that it came from store A
56.76% probability that it came from store A