Solve the proportion for the given variable. 
= 
A. 3
B. 4
C. 30
D. 24
Answer: C
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At the outside wall the roof is 10 feet high. Also, 5 horizontal feet from the outside wall toward the interior of the room, the roof is 11 feet tall. What is the height of the roof 10 horizontal feet from the outside wall toward the interior of the room? ?
A. 12.10 feet B. 14.55 feet C. 15.22 feet D. 12.00 feet
Write the indicated term of the binomial expansion.(4x2 + 
)9 ; 5th term
A. 32,256x8y2
B. 129,024x10y4
C. 1024x10y2
D. 129,024x10y2
Translate the phrase to an algebraic expression. Use n as the number unless otherwise indicated.eight-tenths added to a number raised to the fifth power
A. 0.8 + 5n B. 8 + n5 C. 0.8 + n5 D. (0.8 + n)5
Solve the problem.The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 160 seconds are required to make a 
enlargement, find the time required for a 
enlargement.
A. 504 sec B. 448 sec C. 392 sec D. 560 sec