If another equation is graphed so that the systems has no solution, which equation could that be?
a) y=-2(x-1/2) b) y= -1/2 (4x + 2) c) y=-x+1 d) y=-1/2x +2

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?