Describe the end behavior of a 14th degree polynomial with a positive leading coefficient

I'm confused on this could anyone me and show me what i need to do to solve it.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?