Evaluate the expression.66 - 7 ? 5 + 135 ÷ (-15)
A. 22
B. -13
C. 286
D. -551
Answer: A
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Use grouping symbols to clarify the meaning of the symbolic statement.p ? q ? p ? q ? ~p
A. (p ? q) ? [(p ? q) ? ~p] B. p ? (q ? p) ? (q ? ~p) C. (p ? q) ? (p ? q) ? ~p D. [(p ? q) ? p] ? (q ? ~p)
Determine if the argument is valid or invalid. Give a reason to justify answer.If it is cold, then you need a coat.You do not need a coat. ? It is not cold.
A. Valid by the law of contraposition B. Invalid by fallacy of the inverse C. Invalid by fallacy of the converse D. Valid by the law of syllogism
Graph the region that satisfies the constraints.A company produce two types of printers, the Inkjet and the Laserjet. It takes 5 hours to make the Inkjet and 10 hours to make the Laserjet. The company can make at most 150 printers per day and has 1000 labor-hours available per day. Let x represent the number of Inkjet printers produced in a day and y represent the number of Laserjet printers produced in a day.
A. 
B. 
C. 
D. 
Solve the problem.The Family Fine Arts Center charges $21 per adult and $12 per senior citizen for its performances. On a recent weekend evening when 422 people paid admission, the total receipts were $6045. How many who paid were senior citizens?
A. 313 senior citizens B. 223 senior citizens C. 109 senior citizens D. 199 senior citizens