Evaluate the logarithm.log9
A. -3
B. 81
C. 3
D. -81
Answer: A
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Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students, B's to the next 25%, C's to the next 40%, D's to the next 16%, and F's to the bottom 9%. What is the bottom cutoff for a D grade? Round your answer to the nearest whole number.
A. 56 B. 58 C. 62 D. 65
Solve.Molly has $5.70 in coins. She has five more nickels than dimes. She has seven fewer quarters than dimes. How many quarters does she have?
A. 18 quarters B. 16 quarters C. 11 quarters D. 23 quarters
Convert the units using two or three unit fractions.7 wk = 
min
A. 10,080 B. 35,280 C. 70,560 D. 50,400
Estimate the sum or difference by rounding each number to the nearest hundred.918 - 763
A. 200 B. 100 C. 155 D. 1700