Perform the indicated operation. Write the result in the form a + bi.
A. 
+ 
i
B. 
+ 
i
C. 
- 
i
D. 
- 
i
Answer: C
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Identify the fraction as a proper fraction or an improper fraction.
A. Improper fraction B. Proper fraction
Find gross earnings. Overtime is one-and-a-half times the normal per piece rate.Michelle Johnson decorates cookies for a bakery. She is paid $0.3 each and is charged $0.1 per rejection. One week she decorated 813 cookies at the regular rate, 52 cookies at the overtime rate, and had 29 chargebacks.
A. $270.20 B. $267.30 C. $264.40 D. $256.60
Use a percent proportion to answer the question.564 inks is 12.5% of what number of inks?
A. 0.16 inks B. 16 inks C. 45,120 inks D. 4512 inks
Solve the problem.The probability that a person passes a test on the first try is 0.67. The probability that a person who fails the first test will pass on the second try is 0.76. The probability that a person who fails the first and second tests will pass the third time is 0.60. Find the probability that a person who is prepared to take the test a maximum of three times will pass.
A. 0.9208 B. 0.9683 C. 0.3055 D. 0.0475