Can you help me with this it says find the volume of the quart pyramid above. Thank you:)

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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?