1. The symbol in the cell D6 should be:

1. X+Y
2. PFT
3. LHS
4. RHS

2. The value in the cell F9 should be:

1. 12
2. 25
3. 30
4. X

3. What is the excel function and arguments for calculating the amount of Machine 1 resources that are used?

1. PRODUCT($B$3:$C$3;B7:C7)
2. SUMPRODUCT($B$3:$C$3;B7:C7)
3. SUM($B$4:$C$4;B7:C7)
4. SUMPRODUCT($B$4:$C$4;B7:C7)