Peyton Manning throws a football 20 yards when the temperature is 50 degrees Fahrenheit, but the ball moves twice as far when the temperature is 80 degrees Fahrenheit. Last Saturday, the temperature was 50 degrees Fahrenheit, and he threw the ball twenty times. On Sunday, the temperature rose to 80 degrees Fahrenheit, and he threw the ball 30 times. Calculate the total number of yards he threw the ball in the two days. Give the rationale and then the answer.
Let's think step by step. On Saturday, he threw the ball 20 times, and since the temperature was 50 degrees, he could throw only 20 yards, totaling 20 * 20 = 400 yards. On Sunday, the temperature favored him, and he threw the ball twice the distance he could throw on Saturday, which is 2 * 20 = 40 yards. If he threw the ball 30 times, he threw for 30 * 40 = 1200 yards. In the two days, he threw 1200 + 400 = 1600 yards.. The answer is: 1600.

On Monday Samson ate 3 sandwiches at lunch and ate twice as many at dinner. The next morning, he felt sick from eating all those sandwiches, so he only ate one sandwich for breakfast. How many more sandwiches in total did Samson eat on Monday than Tuesday? Give the rationale and then the answer.
Let's think step by step. Samson ate 3 sandwiches x 2 = 6 sandwiches at dinner on Monday. He ate 3 sandwiches + 6 sandwiches = 9 sandwiches total on Monday. Therefore, he ate 9 sandwiches - 1 sandwich = 8 more sandwiches on Monday than Tuesday.. The answer is: 8.

Nina enjoys keeping insects as pets. She has 3 spiders and 50 ants. Each spider has 8 eyes. Each ant has 2 eyes. How many eyes are there in total among Nina’s pet insects? Give the rationale and then the answer.
Let's think step by step. The number of eyes from the spiders is 3 * 8 = 24 eyes. The number of eyes from the ants is 50 * 2 = 100 eyes. The total number of eyes among Nina’s insects is 24 + 100 = 124 eyes.. The answer is: 124.