Answer:
Pay rates are not equal
My pay rate per hour = $7
My friends pay rate per hour = $9
Explanation:
Given:
I earn $ 56 for 8 hours work
My friend Earn $36 for 4 hours work
To find:
Pay rates same or not
Solution:
As it is given in the question that i earn $56 for 8 hour work
So for one hour I earn =

= $ 7
so my pay rate per hour is = $7
So for one hour my friend earn =

= $ 9
so my pay rate per hour is = $9
So it could be visible that as my pay rate per hour is $7 and my friends pay rate per hour is $9 so I the pay rates are not equivalent