Find the average of the list of numbers.154, 113, 135, 142, 151
A. 142
B. 139
C. 138
D. 149
Answer: B
Mathematics
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Write the number as an exponential expression, using the base shown. Check your result with a calculator.81 (base 3)
A. 43 B. 44 C. 34 D. 35
Mathematics
Rationalize the denominator. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Solve by the substitution method.x + y = 9x + y = 4
A. (9, 4) B. No solution C. (0, 13) D. (0, 0)
Mathematics
Solve.Pete is driving across country from Boston to Seattle. He keeps a record of the distance that he drives each day.Monday415 milesTuesday302 milesWednesday315 milesThursday279 milesFriday264 milesHow much further did he drive on Monday than on Friday?
A. 415 miles B. 679 miles C. 136 miles D. 151 miles
Mathematics