Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.7x = 6x + 7
A. 3.36
B. 81.36
C. 42.00
D. 40.68
Answer: B
Mathematics
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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%, and C's to the next 42%. What is the bottom cutoff for a C grade? Round your answer to the nearest whole number.
A. 65 B. 68 C. 77 D. 63
Mathematics
Answer the question. Give your answer in simplest form.A 6-minute egg is cooked for what fraction of an hour? (1 hour = 60 min)
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Use the map to find the shortest route between the given locations.Fremont to Carson
A. 153 miles B. 76 miles C. 115 miles D. 97 miles
Mathematics