Using the provided spreadsheet context, calculate total sales for Product J and Thomas, Thomas's total points, and determine customer categories (Gold, Silver, Bronze) and count of Gold customers.

a)

• i) To compute the total sales for product J at B9: $$\boxed{\text{=SUM(B2:B8)}}$$
• ii) To compute total sales for Thomas at E2: $$\boxed{\text{=SUM(B2:D2)}}$$

b) To compute the total points for Thomas in cell F2:

c)

• i) To determine Cantona's category at G4 (assuming Cantona's points are in F4): $$\boxed{\text{=IF(F4>1300, "Gold", IF(F4>1100, "Silver", "Bronze"))}}$$
• ii) To determine the number of people with Gold Category in G10 (assuming categories are in G2:G8): $$\boxed{\text{=COUNTIF(G2:G8, "Gold")}}$$