part 1 and 2 of the question is attached.

DO: A specific activity to accomplish the PLAN. Amount Spent on Gifts Fermi Estimating: Formula Practice using the Fermi technique by estimating the average dollar amount spent per adult in your country on gifts to other people through the calendar year. Use your personal knowledge and avoid using the internet to look up numbers for this first round. It's ok to be wrong, as it will be useful! Start by defining a formula to get to your challenge. If you need more rows for inputs right click within the grid and select "insert row below". Options Formula: Use math operators such as ()+ -*/ between your input names. Example: (Input A+Input B) / (Input C-Input D) collapse topla collapse tool Amount Spent on Gifts Fermi Estimating: Logic and Assumptions Estimate a value for each variable in the equation you created. Start by documenting the variables in the first column then document your numerical estimate and the logic and assumptions behind how you got that number. Estimate Logic and Assumptions Options Input Names:
Each row should correspond to a part of your formula from above. Final Number and Unit A collapse tool DO: A specific activity to accomplish the PLAN. Amount Spent on Gifts Fermi Estimating: Formula Practice using the Fermi technique by estimating the average dollar amount spent per adult in your country on gifts to other people through the calendar year. Use your personal knowledge and avoid using the internet to look up numbers for this first round. It's ok to be wrong, as it will be useful! Start by defining a formula to get to your challenge. If you need more rows for inputs right click within the grid and select "insert row below". Options Formula: Use math operators such as ()+ -*/ between your input names. Example: (Input A+Input B) / (Input C-Input D) collapse topla collapse tool Amount Spent on Gifts Fermi Estimating: Logic and Assumptions Estimate a value for each variable in the equation you created. Start by documenting the variables in the first column then document your numerical estimate and the logic and assumptions behind how you got that number. Estimate Logic and Assumptions Options Input Names:
Each row should correspond to a part of your formula from above. Final Number and Unit A collapse tool