Please help with formulas or explanation of how to perform it.

Instructions Using the spreadsheet provided, edit the cells to include the following controls: 1. Annual fee cannot exceed 8% of purchase cost. 2. Training costs cannot exceed $12,000 in year 0 and $3,000 thereafter. (Enter the annual training costs in cell B10 and enter initial year 0 training costs in cell D10). 3. Annual savings due to efficiency cannot exceed $5,000, but must be zero in year 0. 4. Cell C2 (highlighted in yellow to the right of the word "Answer") must force entry of either "YES" or "NO" - no other values can be accepted. (hint: use cells A30 and A31 as the source for a dropdown list). 5. Your name must appear in cell C3, and the cell must ensure that any name entered cannot exceed 30 characters total. 6. Cell B8 (annual fee) must NOT permit any alphabetic text. 7. The reduction in risk due to the security investment (cell B18) must range between 2% and 8%, inclusive. 8. Lock the spreadsheet so that data can only be entered in these cells (all highlighted in yellow in the spreadsheet):

a. C2 b. C3 c. B8 d. B10 e. B12 f. B18 g. D10 h. A30 i. A31