Find the probability.A game spinner has regions that are numbered 1 through 9. If the spinner is used twice, what is the probability that the first number is a 3 and the second is a 7?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Perform the operation and give the answer as a fraction in lowest terms.
- 
A. - 
B. - 3
C. - 5
D. - 
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
- 
A. 
B. 
C. 
D. 
Mathematics
Losses in a long telephone line reduce a 20-watt input signal to an output of 5 watts. Find the db gain. (Because it is a loss, the "gain" will be negative.) ? Please give the answer to two decimal places.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve.
= -1
A. -5
B. - 
C. - 
D. 
Mathematics