What is z^(3)+5z+3z^(2)+1 - 4 - 2z^(2) simplified

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Atemperature of 1.64◦f corresponds to answer in units of ◦c.