If multiply my number by 4, add -4 to the product, and then take 1/3 of the sum, the result is -6. what is my number. show work

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

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.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?