The expression below was simplified using two properties of operations 5(11z+29+6z) which properties were applied in steps 1 and 3, respectively

Associative property, then distributive property

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

step 1 5(11z+6z+29)

step 3 85z+145  

My

=5(11z+29+6z)

=5(17z + 29)

=5(17z + 29)

=5(17z) + 5(29)

= 85z + 145

Hope it will find you well.

the correct is answer is a 9-sided polygon!

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.