Solve the problem.A lab technician has 435 mL of a solution of water and acid. 7% is acid. How many milliliters are acid? Round to the nearest hundredth if necessary.
A. 26.10 mL
B. 304.50 mL
C. 34.80 mL
D. 30.45 mL
Answer: D
Mathematics
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Evaluate the expression without using a calculator.
?
A. 
B. 
C. 
D. 78125
E. -78125
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. x + y = 78x + 8y = 56
A. Cramer's rule does not apply since D = 0; ? B. {(0, 0)} C. Cramer's rule does not apply since D = 0; {(7 - y, y)} D. {(1, 6)}
Mathematics
Find the sum or difference, and write in lowest terms, if necessary.
- (-7)
A. 
B. 
C. - 
D. - 
Mathematics
Solve.
Calculate the difference between the maximum and minimum temperature in February for Sunny City.
A. -16°F B. 14°F C. 16°F D. 24°F
Mathematics