Hi,
Solving:

Answer: y = -128
Hope this helps.
If you have any questions about the answer, comment below and I'll reply.
r3t40
The answer is z=2m+3 so the first one is right
Answer: 
Step-by-step explanation:
Given: Distance traveled by Smith =
mile.
Time taken =
hour
Unit rate in miles per hour = ( Distance traveled by Smith) ÷ (Time taken)


Unit rate = 
Answer:
5.888045975
Step-by-step explanation: