Aline parallel to a triangle's side splits ab into lengths of x − 6 and x + 1. the other side, ac, is split into lengths of x and x + 21. what is the length of ac?
a)27
b)33
c)39
d)45
explain how you solved. do not comment unless you are sure you know the answer. i will give you brainliest for right answer.

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system