Let n represent an unknown number. if n is double the size size of 10, which equation can be used to find it? a. 10 + 2 = nb. 10 - 2 = nc. 10 × 2 = nd. 10 ÷ 2 = nplz .. i'm going thru hell..

C. 10 × 2 = n

Step-by-step explanation:

n = unknown number

"Is"  means equals

"Double" means times 2

if n is double the  size of 10,

n = 2* 10

"if it is my birthday, then it is snowing"

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.