The multiples of 7. Answer: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, <span>98, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168, and more </span> These are all factors of 28. Let's list out the factors of 28: 1, 2, 4, 7, 14, 28. Each of the numbers in this list are factor pairs. We can move from the outsides to the center and pair the numbers together to make sets of numbers that will multiply to make 28.
First you find the amount of people at the reunion which was 80. Then you find 25% of 80. 25% of 80 is 20. The only age group with 20 people is the 20-29 year olds.
470 = 8.75(46 - c) + 11c 470 = 402.5 - 8.75c + 11c 67.5 = 2.25c 30 = c
If c = 30 and Soren worked 30 hours in the office, earning $11 per hour, he earns $330 from his office job. 46 - 30 = 16, which should be the remaining amount of hours Soren worked. 16 * 8.75 = 140. He earned $140 from his cashier job. $330 + $140 = $470.
The correct formula to solve this problem is A. 11c + 8.75(46 - c) = 470
