Average of 5, 25 and y =30 which is true? y< 25, 25

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

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.