Please help please please ASAP

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents