Answer this question:Grayson drives a motorboat for 1 hour at 25 mph and then 0.5 hours for 20 mph. Rudy rows in his rowboat for 3 hours at 10 mph. How much farther, in miles, does Grayson go in his motorboat compared to Rudy?
Grayson first travels 1 * 25 = 25 miles. Then Grayson travels 0.5 * 20 = 10 miles. Grayson travels a total of 25 + 10 = 35 miles. Rudy travels 3 * 10 = 30 miles. Grayson travels 35 - 30 = 5 miles more than Rudy.
The answer is 5.

Answer this question:Johnny spent 3 hours working on a job that paid $7 per hour, 2 hours working on a job that paid $10 an hour, and 4 hours working on a job that paid $12 an hour. Assuming he repeats this process 5 days in a row, how much does Johnny make?
First, we need to determine how much Johnny makes in one day. To start, we perform 3 * 7 = 21 dollars for the first job. Second, we perform 2 * 10 = 20 dollars for the second job. Third, we perform 4 * 12 = 48 dollars for the third job. Altogether, Johnny makes 21 + 20 + 48 = 89 dollars in a day. We multiply this amount by the 5 days, performing 5 * 89 = 445 dollars over 5 days.
The answer is 445.

Answer this question:Thirty students run in a charity race to raise money for the hurricane victims. Ten of the students raised $20 each. The rest of the students raised $30 each. How much did the students raise in all?
Ten students raised a total of $20 x 10 = $200. There are 30 - 10 = 20 students who raised $30 each. Twenty students raised a total of $30 x 20 = $600. Therefore, the students raised a total of $200 + $600 = $800.
The answer is 800.

Answer this question:On our last vacation, I bought 4 times as many tetras as Tim bought clowns. Tim bought twice as many clowns as Rick bought guppies. If Rick bought 30 guppies, how many animals did we buy on our last vacation?
If Rick bought 30 guppies, Tim bought 2 clowns / guppy * 30 guppies = 60 clowns. The total number of tetras bought by you is 4 tetras / clown * 60 clowns = 240 tetras. In total, the three bought 240 tetras + 60 clowns + 30 guppies = 330 animals.
The answer is 330.