Solve the problem.To get a B in biology, Katie must have a mean score of 81 on five lab reports. Scores on the first four lab reports were 92, 77, 79, and 82. What is the lowest score that Katie can get on the last lab report and still receive a B?
A. 71
B. 83
C. 82
D. 75
Answer: D
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F = x5yi - zk; S is portion of the cone z = 4
between z = 0 and z = 1; direction is outward
A. - 
?
B. - 
?
C. - 
D. 
?
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Simplify.(-4x6y8)2
A. -4x12y16 B. -16x12y16 C. 16x12y16 D. 16x8y10
Mathematics
Write fraction in lowest terms.There are 16 ounces to a pound. What fraction of a pound is 12 ounces?
A. 
B. 12
C. 
D. 
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Solve.How many 5-card hands are possible with two 52-card decks?
A. 1,092,624 B. 47,842,522 C. 91,962,620 D. 2,598,960
Mathematics