Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.3, 5, 8,12, ...
A. Arithmetic; d = 3
B. Geometric; r = 3
C. Geometric; r = 9
D. Neither
Answer: D
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Write an algebraic equation and use it to solve the problem.A chemist needs 9 liters of a 50% salt solution. All she has available is a 20% salt solution and a 70% salt solution. How much of each of the two solutions should she mix to obtain her desired solution?
A. 4.5 liters of the 20% solution; 4.5 liters of the 70% solution B. 1.8 liters of the 20% solution; 7.2 liters of the 70% solution C. 2.7 liters of the 20% solution; 6.3 liters of the 70% solution D. 3.6 liters of the 20% solution; 5.4 liters of the 70% solution
Evaluate.2m + 3n for m = 5 and n = 9
A. 5 B. 37 C. 13 D. 29
Perform the division. Write the answer with positive exponents.
A. 6x11 + 4x2 + 7 + 
+ 
B. 3x3 + 8x10 + 14x8 + 6x6 + 5x5
C. 3x3 + 4x2 + 7
D. 3x3 + 4x2 + 7 + 
+ 
Multiply.(-4x2y3)(8xy4)(5x5y)
A. 9x10y12 B. -160x10y12 C. 9x8y8 D. -160x8y8