How can you tell the pre-image and image apart if given only the coordinates or a picture

What is coefficient of the term of degree of degree 5 in the polynomial below

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.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250