Answer: Expected average quarterly costs is $32,150.
Step-by-step explanation:
Given that,
Fixed cost = $5,300 a month
Variable costs are expected to be $130 per client for each quarter.
Total Annual Cost = Fixed Cost + Variable cost
= $5,300 × 12 + (110 + 140 + 150 + 100) × $130
= 63600 + 65000
= $128600
Expected average quarterly costs =

=

= $32,150