Need an expert on calculations on finance, marketing and economics who can complete these in 2 hours, at a pre-agreed time

it’ll involve calculations on concepts such as
Mark-up and selling price,
Cost of impressions (marketing).
Price elasticity,
Bass diffusion modelling,
Customer lifetime value,
Return on sales calculation,
Recency Frequency Monetary value (RFM) model,
Incremental return of marketing investment,
Net reach of advertisements,
Net promoter score (NPS),
Attraction model,
Break even analysis
Multinomial logistical model
Fair share property