The sum of three numbers is 123. The second number is 8 more than the first. The third number is 3 times the first. What are the numbers ? First number: 23

Second number: 31

Third number: 69

What is the volume of this square pyramid?

Twelve less than a number is at most 20

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?