Using: 100x^2+100x =2000

What are three equivalent equations? And then solve for x.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

Plzzz answer both questions and i will give you 100 points