It will cost $60 to rent a sailboat and $80 per hour to rent a ski boat. Ken rented a sailboat while Aldrich rented a ski boat. How much more did it cost Aldrich to rent the ski boat than Ken to rent a sailboat for three hours a day in two days? Give the rationale and then the answer.
Let's think step by step. Ken paid $60 x 3 = $180 to rent a sailboat for 3 hours in a day. Aldrich paid $80 x 3 = $240 to rent a ski boat in 3 hours in a day. So Aldrich paid $240 - $180 = $60 more to rent a ski boat than Ken to rent the sailboat each day. Therefore, it cost Aldrich $60 x 2 = $120 more to rent a ski boat than Ken to rent the sailboat in two days.. The answer is: 120.

Issac has to buy pens and pencils for the upcoming school year. Issac buys 108 writing utensils total. He buys 12 more than 5 times the number of pencils than pens. How many pens did Issac buy? Give the rationale and then the answer.
Let's think step by step. Let x be the number of pens bought. He bought 12 + 5x pencils. x + (12 + 5x) = 108. 6x + 12 = 108. 6x = 96. x = 16 pens.. The answer is: 16.

Mike and Ted planted tomatoes. In the morning, Mike planted 50 tomato seeds while Ted planted twice as much as Mike. In the afternoon, Mike planted 60 tomato seeds while Ted planted 20 fewer tomato seeds than Mike. How many tomato seeds did they plant altogether? Give the rationale and then the answer.
Let's think step by step. Ted planted 2 x 50 = 100 tomato seeds. So, Mike and Ted planted 50 + 100 = 150 tomato seeds in the morning. In the afternoon, Ted planted 60 - 20 = 40 seeds. Thus, Mike and Ted planted 60 + 40 = 100 tomato seeds in the afternoon. Therefore, they planted 150 + 100 = 250 tomato seed altogether.. The answer is: 250.