Determine whether the argument is valid or invalid. You may compare the argument to a common form, if applicable, or use a truth table.You get soup or you get salad.You did not get soup. ? You got salad.
A. Valid
B. Invalid
Answer: A
Mathematics
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Choose the most reasonable unit of measure.Height of a tree: 6.5 
(mm, cm, m, km)
A. km B. m C. mm D. cm
Mathematics
Solve the inequality, and graph the solution set.
< x
A. (-?, 3) ? (7, ?)
B. (3, 7)
C. (0, 3) ? (7, ?)
D. (7, ?)
Mathematics
Solve the problem.A business projects next year's profits to be $80,200,000.Write the number in scientific notation.
A. 8.02 × 107 B. 8.02 × 10-8 C. 8.02 × 106 D. 8.02 × 108
Mathematics
Determine which of the following methods is the best choice for solving the given equation: factoring, using the principle of square roots or using the quadratic formula. Then, solve the equation.(x + 3)2 = 13
A. Factoring; 10
B. Square root principle; -3 ± 
C. Square root principle or factoring; 3 ± 
D. Quadratic formula; ±
Mathematics