Evaluate:
a. 84
b. 60
c. 10
d. 20
c. 10
Mathematics
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Write the expression as one logarithm.logb x + logb y
A. logb (x + y) B. log2b xy C. logb xy D. log2b (x + y)
Mathematics
Solve the problem.The highway speeds of 100 cars are summarized in the frequency distribution below. Find the grouped mean rounded to the nearest tenth of a mile per hour. 
A. 60.8 mph B. 54.5 mph C. 58.1 mph D. 55.3 mph
Mathematics
Multiply.(7x)(3x4)(x2)
A. 21x6 B. 10x6 C. 21x7 D. 11x7
Mathematics
Multiply. Write the answer in lowest terms.
? 
A. 
B. 
C. 
D. 1
Mathematics