Create data validation rules in a spreadsheet to perform each of the following controls

a Limit Check - that values in the cell are less than 70
b Range Check - That values in the cell are between 15 and 65
c Sign Check- That values in the cell are positive
d Field check- that values in a cell are only numeric
e Size check - that the cell accepts no more than 40 characters of text
f Reasonable check - that the cell's value is less than 75% of the cell to its left
g validity check- that a value exists in a list of allowable values