You use worksheets to perform calculations. how do you perform these calculations?

These functions can be used by putting an equal sign before entering the function string

-SUM: you can use this within the worksheet to add and obtain a total for a column / row

(=SUM (number 1, number 2…)

-SEARCH:  you can SEARCH any specific item in the worksheet using the search function

(=SEARCH(find_text, within_text,[start_num])

-AVERAGE: you can take average of two or more numbers using this function within the worksheet (=AVERAGE (number1, number2…)

Like these functions there are several more functions that can be used  

just dont use the app.its not a good one,consumes a lot of ur head without any benefits

i guess the correct option is letter a.

use contrasting font sizes, but the same font style