Go to the Business Customer Analysis worksheet, which compiles data about the Texas business accounts that Kamal handles. Calculate the number of years a customer has been with Cello Worldwide as follows:

a$.$ In cell E$5,$ enter a formula without using a function that subtracts the start date for the customer from the current date and divides the result by $365\mathrm{.}25,$ the number of days in a year, accounting for leap year.

b$.$ Use an absolute reference to cell C$2$ in the formula.

c$.$ Display the value in cell $E5$ with one decimal place.

d$.$ Fill the range E$6$:E$18$ with the formula in cell E$5.$