Solve the problem.On an architect's blueprint, 1 inch corresponds to 8 feet. Find the length of a wall represented by a line 
inches long on the blueprint. Round to the nearest tenth, if necessary.
A. 50 ft
B. 8.8 ft
C. 78.1 ft
D. 12.8 ft
Answer: A
Mathematics
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Use the elimination method to solve the system. -2x + 4y = -5-10x + 20y = -25
A. (-20, 10) B. Infinitely many solutions C. (10, -20) D. No solution
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Simplify the expression, writing the answer as a single term without negative exponents.
A. 
B. - 
C. -35b + 15a
D. 15b - 35a
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Write the number in scientific notation..00004209
A. 4.209 × 105 B. 4.209 × 10-4 C. 4.209 × 10-5 D. 4.209 × 104
Mathematics
Find the surface area of the following Right Circular Cylinder.
radius: 4 mm
height: 17 mm
?
A. 160? mm2 B. ?168? mm2 C. ?336 mm2 D. 136? mm E. 272?? mm2
Mathematics