What’s (3 , 1)reflected over the x-axis

Which value is not a solution of 8x^3 – 1 = 0

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.

Combine like terms to make a simpler expression 3z+z