Answer:
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 answer:
=5(11z+29+6z)
=5(17z + 29)
=5(17z + 29)
=5(17z) + 5(29)
= 85z + 145
Hope it will find you well.