The equation y=-7x-5 and another equation have a solution of (-2,9). Which of the following could be the second equation.
A. Y=1/2x+10
B. Y=-1/2x+7
C. Y=3x-3
D. Y=2x+5

Please explain how to get this answer! To get brainlest.

What is the size of the matrix resulting from

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)