Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant B to pollutant C.
A.
B.
C.
D.
Answer: C
Mathematics
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Write the unit cost, rounded to the nearest cent.If 11 compact discs cost $167.85, then one compact disc costs $15.2591.
A. $167.85 B. $15.16 C. $15.36 D. $15.26
Mathematics
Solve.The enrollment at a local college increased 7% over last year's enrollment of 800. Find the current enrollment.
A. 856 students B. 1360 students C. 56 students D. 807 students
Mathematics
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.(4x4y4)1/2
A. 2x4y2 B. 2x2y2 C. x2y2 D. 2x2y
Mathematics
Solve the system using Gaussian elimination.
a. ( 5, 7, 6 )
b. ( -5, -7, -6 )
c. ( 5, 7, -6 )
d. ( 5, -7, -6 )
e. ( -5, 7, -6 )
Mathematics