Match up the expressions.
Where you see shapes you have to find an expression for their perimeter.
3(x + 1)
5x + 15
6(x + 2)
2x + 12
2(x + 2)
6x + 6
5(x + 3)
6x + 12
3(2x + 2)
2x + 4
D 6x +12
6(2+ + 1) 2+1
3(2x + 2)
+1 Arti
2x+4|
2(x+3)
2x+1
6(2x + 1)
x+1/ x+1
x+1
2(x + 3)

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.