11. When you multiply a certain number by 3 and then subtract 7 18. you get the same result as when you multiply the num- ber by 2 and add What is the number? 13. Di Paloma University had a faculty reduction and lost of its faculty. If 320 faculty members were left after the reduc- tion, how many members were there originally? 14. Alberto owns of the stock in the N.W. Tofu Company. His sister Renatta owns half as much stock as Alberto. What part of the stock is owned by neither Alberto nor Renatta? 16. A suit is on sale for $180. What was the original price of the suit if the discount was of the original price? 18. Jasmine is reading a book. She has finished of the book and has 82 pages left to read. How many pages has she read? 19. John took all his money out of his bank savings account. He spent $50 on a radio and of what remained on presents. Half of what was left he put back in his checking account, and the remaining $35 he donated to charity. How much money did John originally have in his savings account? 2. Use a rectangular region to illustrate each of the following products: 31 a. b. 4 3 113 12 53 213 C. 215 21 113 21. The formula for converting degrees Celsius (C) to degrees Fahrenheit (F) is F = (3). C + 32. a. If Samantha reads that the temperature is 32C in Spain, what is the Fahrenheit temperature? b. If the temperature dropped to 40F in West Yellow- stone, what is the temperature in degrees Celsius? 22. Glenn bought 175 shares of stock at 48 a share. A year later, he sold it at 35 a share. How much did Glenn lose on the transaction? 23. Al gives of his marbles to Bev. Bev gives of these to Carl. Carl gives of these to Dani. If Dani has four marbles, how many did Al have originally? 24. Believe it or not! Graham Greater supposedly averaged a hit every 1 1/2 sec in trapshooting 2264 targets in 1 hr. Is the arithmetic true? 26. The normal brain weight for an African bull elephant is 9 1/4 lb. Approximately how much would be the weight of 13 of the brains of these elephants? 4. Use the distributive property to find each product. a. 4.2 b. 3.2 Hint: