Step-by-step explanation:

By simplifying the right side of the equation, we come up with
, or D
Answer:
5.34
Step-by-step explanation:
x = 8.9 X 0.6
x = 5.34
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New balance = unpaid balance + periodic interest of unpaid balance + new transaction
Periodic interest rate = APR/12
= 17.4%/12
= 1.45%
unpaid credit card balance = 2543.32
new transaction = 320
New balance = 2543.32+(0.0145 x 2543.32) +320
New balance credit card balance = 2900.19814
Answer: Probability that both tests detect the bacteria is 83.66%.
Step-by-step explanation:
Since we have given that
Probability of the first test giving accurate results = 84%
Probability of the second test is accurate = 89%
Probability of both tests detect the bacteria is given by

Hence, Probability that both tests detect the bacteria is 83.66%.