Evaluate the expression by hand. Variables represent any real number.-
A. -9
B. Not possible
C. -81
D. -729
Answer: A
Mathematics
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Provide an appropriate response.Solve the word problem using a system of equations with two unknowns:A drafting company charges different prices for preliminary and detailed blueprints of houses. One week they completed 4 preliminary drawings and 7 detailed ones and earned $10,400. The second week they completed 2 preliminaries and 9 detailed and earned $11,800. How much did they charge for each preliminary and each detailed blueprint?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify.
A. - 
B. 
C. - 
D. 
Mathematics
Find the square root.
A. 2500 B. 1000 C. 500 D. 125,000
Mathematics
Simplify the expression, writing the answer as a single term without negative exponents.
A. 
B. 
C. 
D. 
Mathematics