Solve for a. (a) if your answer is 51 cm color the arm sleeves yellow. (b) if your answer is 149 cm color the arm sleeves apricot. (explain )

(b) If your answer is 149 cm

color the arm sleeves apricot.

Step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!