Geometry Help-PLEASE Help, Pretty Easy?

1. A car drove at an average speed of 37 miles per hour for 9 hours. How far did it travel? A. 333 miles B. 46 miles C. 28 miles D. 37/9 miles 2. Shelly drove for 250 miles at 50 miles per hour. How long did the trip take? A. 5 hours B. 200 hours C. 20 hours D. 10 hours 3. Two workers mow lawns. One worker can mow 4 lawns in 3 hours. The other worker can mow 2 lawns in 3 hours. How many lawns can they mow, if they work together, in 10 hours? A. 18 lawns B. 20 lawns C. 22 lawns D. 24 lawns 4. On his birthday, Bryan opened a new savings account and deposited the $50 his grandmother gave him. Each week he deposited half of his $15 allowance. Which of these equations represents the amount of money, m, Bryan will have deposited in his savings account after w weeks? A. m = 15w + 25 B. m = 7.5w + 50 C. m = 7.5w D. m = 15w + 50 5. Forrest needs braces. According to his dental insurance, he must pay the first $100 plus 20% of the balance, b. Which of these equations represents the total payment, p, Forrest will owe for his braces? A. p= 100 + 20b B. p = 100b + 20 C. p = 100b + .20 D. p = 100 + .20b 6. Caroline and Jacob both have a dog walking business. Caroline charges $10 per hour for every hour each month that she walks a dog. Jacob charges a fixed fee of $30 per month and an additional $6 for every hour that he walks a dog. What is the fewest number of hours per month that both could work so that Jacob is less expensive than Caroline? A. 1 hour B. 5 hours C. 8 hours D. 10 hours 8. George wants to get his grandmother a cell phone for emergencies. He is comparing the costs of two pre-paid plans. Plan A costs a flat $0.25 per minute for each call. Each call on Plan B costs $0.50 for the first minute and then $0.15 per each additional minute. Plan A will be less expensive for her if each of her calls do not go over how many minutes? A. 1 minute B. 2 minutes C. 3 minutes D. 4 minutes 9. John is on the school track team and continues conditioning at home during the summer. John leaves his home and runs to a mailbox 3 miles away. His running speed is 6 miles per hour. He turns and walks home at the rate of 3 miles per hour. How long does it take John to make the entire round trip? (Assume that he spent no time at the mailbox.) A. 45 minutes B. 60 minutes C. 90 minutes D. 120 minutes Yes, I know some are missing. But no, this isn't my homework, just helping out my nephew with his. Thanks to anyone who even tries and puts out at least some of the answers. Much appriated.
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1. A) 37x9=333miles 2. A) 250/50= 5 hours 3. B) 20 hours 4. B) m = 7.5w + 50 5. D) p = 100 + .20b 6.C) 8 hours 7. 8. C) 3 minutes 9. C) 90 minutes
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