Answer:
1)Select the cells you want to shade.
2)On the Home tab of ribbon select Conditional Formatting > New Rule
3)Select 'Use a formula to determine which cells to format' > enter your formula in the 'Edit the Rule Description' field.
4)Click the Format button and from the Format Cells dialog box select the Fill tab > choose your weapon (colour, pattern, fill effect etc.):
Step-by-step explanation: