A=0.5 b=-6
work out ab-b

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

If you answer 2+2 you will get over 80 points

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b