If (-2,1) is the midpoint of the line segment ST and the coordinates of S are (3,9), find the coordinates of T

Bryce drove 200 miles to his grandparents house this is 50 miles more than three times the distance to aunt lance a house what is the distance to hisaunt lance house?

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

Pls brainliest will be awarded if answer is correct