Cloud Economic and cost calculation

Does anyone know how to solve for this?
You are a consultant in a company that wants to migrate to Cloud Platform. You
have been given the following parameters to determine the Virtual Computing
Capacity (V) of Cloud System, if the total demand D is 334GB-hour at 7 MB/s while
the Maximum Demand is 450GB and the Minimum Demand (X) GB is 210GB.
The time delay to provide extra computing capacity on demand is µ = 2 hours;
Answer the following questions without considering the Bandwidth.

(i) Determine the Virtual Demand Capacity (V) of the cloud usage in the
Systems.
(ii) Compare the difference in Cloud costing using the Approximation method
and calculate the ratio of in-house cost against the cloud infrastructure when
the following values are given and explain your answer. Where
c – cost GB per hour of CPU time - £100 per hour
p is the power cost per computing hour; £10 per hour
T is one day - (24 ) hours