Which property does the following statement illustrates? (a + b)c = (b + a)c

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z