It is given that cos x = b, where x is the radian measure of an angle and 0

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.

7+(3n++8) what is the answer to this?

The tree filled 3/4 of a cup in 1/2 and hour at what rate does syurup flow from the tree