Solve.A rectangular space of 252 square feet is allocated for the living and dining areas in an apartment. Find the width of the square living area given that the width of the dining area is 
A. 11 ft
B. 14 ft
C. 21 ft
D. 12 ft
Answer: D
Mathematics
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Add or subtract, as indicated.13 - 5
A. 8
B. 7
C. 12
D. 8
Mathematics
Evaluate the expression.log2 71.03
A. 35.5150 B. 1.8514 C. 0.1626 D. 6.1504
Mathematics
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the pH if the hydrogen ion concentration is 
A. -10 B. 4 C. -4 D. 10
Mathematics
Use a calculator to find the natural logarithm correct to four decimal places.ln (2.93 ? 102)
A. 2.1500 B. 1.0750 C. 1.7681 D. 5.6802
Mathematics