The algebraic expression s2 gives the area of a square, where s represents the length of one of its sides. Use this information to find the area of the square.
5 mi
A. 28 sq mi
B. 20 sq mi
C. 25 sq mi
D. 21 sq mi
Answer: C
Mathematics
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Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics
Perform the following operation and write the result in lowest terms. - 9
+ 1
A. 7
B. -8
C. 7
D. - 7
Mathematics
Add or subtract the rational numbers. Express the sum or difference as a rational number in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the pH of a solution with a hydrogen ion concentration of 
gram-ions per liter.
?
Please give the answer to two decimal places.
Fill in the blank(s) with the appropriate word(s).
Mathematics