Simplify the algebraic expression by collecting and combining like terms.5.2x - 1.8 - 3.9x + 7 + 2.2x
A. 3.5x + 5.2
B. 3.5x - 5.2
C. 3.5x + 8.8
D. 11.3x + 5.2
Answer: A
Mathematics
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Solve the equation.?5m + 3? + 5 = 10
A. 
B. 
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C. 
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D. - 
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Mathematics
Add or subtract as indicated. Write your answer in the form a + bi.9i + (-3 - i)
A. -3 + 10i B. 3 - 8i C. -3 + 8i D. 3 - 10i
Mathematics
Use the percent proportion to answer the question. Round your answer to the nearest tenth of a percent, if necessary.4.1 meters is what percent of 16 meters?
A. 390.2% B. 25.6% C. 0.3% D. 3.9%
Mathematics
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(8, 2)} B. no solution; ? C. {(9, 2)} D. {(9, 1)}
Mathematics