If angle one equals 8X +10 and angle two equals 10 X -10 and a formula linear pair then find the measure of angle two

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

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.

Two numbers have a sum of -19. one number is x. what expression represents the other number?