Solve the equation.
+ 8 = 7
A. ?
B. {225}
C. {-1}
D. {1}
Answer: A
Mathematics
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Solve the problem.A contractor needs to know the height of a building to estimate the cost of a job. From a point 
away from the base of the building, the angle of elevation to the top of the building is found to be 
Find the height of the building. Round your answer to the hundredths place when necessary.
A. 80.32 ft B. 84.75 ft C. 81.85 ft D. 86.08 ft
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Simplify.i11
A. i B. -i C. 1 D. -1
Mathematics
Solve.x = 2644 + 2530
A. 5137 B. 6174 C. 5174 D. 5074
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Use addition, subtraction, or multiplication to solve the problem.The list price of a car is $13,973. The manufacturer offers a rebate of 
What is the final price of the car?
A. $13,143 B. $14,703 C. $14,803 D. $13,043
Mathematics