The difference between a number and seven is less than or equal to -3. Find the possible numbers.

n ≤ 4
n ≥ 4
n ≤ -10
n ≥ -10

X+ y = k 2x + 3y = k + 1 the point of intersection of the lines has an x-coordinate of a.2k + 1 b.-2k + 1 c.2k - 1

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1