9a z +7=13 X-252 The quotient of a number and 42 increased by 7 is 13. Find the number. b. (L+247) money as one of the department heads. If the total of their salaries is $180,000, find each person's salary. 3.0 10 The president of a certain university makes three times as much 10a. b. 3. 11. 30 marbles are to be divided into three bags so that the second bag has three times as many marbles as the first bag and the third bag has twice as many marbles as the first bag. If x is the number of marbles in the first bag, find the number of marbles in each bag. 11a. b. A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $55 under this promotional deal, how many minutes of phone calls did he make? (Round to the nearest integer, if necessary.) 12a. 12. b. 2017 Pearson Education, Inc. Copyright AE-73 313

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.