Find the perimeter of triangle SLC

96 units

Step-by-step explanation:

The corresponding sides are congruent, thus

SL = DE , substitute values

8x + 16 = 41 + 3x ( subtract 3x from both sides )

5x + 16 = 41 ( subtract 16 from both sides )

5x = 25 ( divide both sides by 5 )

x = 5

Thus perimeter = SL + LC + SC

Note that SC = DN  = 6x - 4 ( corresponding sides are congruent )

perimeter = 8x + 16 + x + 9 + 6x - 4 = 15x + 21 = 15(5) + 21 = 75 + 21 = 96

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.