please just show an example in excel of the combo IF and WEEKDAY function for this. i cannot figure it out

7. Ms. Sweet would like you to create a chart that shows the trend in cookie sales over the four weeks under examination and highlights the periods with the highest sales. (See image of chart below.) TT d. To highlight the days with the highest sales a second column of data must be created on the All Weeks - By Date sheet. This column of data is named "Friday Saturday Sale?" because cookie sales are greatest on Fridays and Saturdays. A value of 1 should be assigned to Fridays and Saturdays. A value of 0 should be assigned to all other days. Enter a formula in cell C5 of the All Weeks - By Date sheet that uses the IF function and the WEEKDAY function to assign a value of 1 to Fridays and Saturdays and a value of 0 to all other days. Copy the formula in cell C5 down the column to cell C32. Catnday Sale data series to the line chart, 1.1 TH