You copy the formula =sum($a1: c1) from cell d1 to cell f10. what will the formula change to? a.) =sum(a1: c1) b.) =sum($a10: e10) c.) =sum(a10: e10) d.) =sum($a10: c10)

The right answer is C) =SUM(A10:E10)

This is a problem of using Excel. This problem has been solved in Figure 1 and 2. The first formula =SUM($A1:C1) has been written in cell D1. This sum is:

Cell A1 + Cell B1 + Cell C1

Next, by using copy and paste tool in cell F10 the formula automatically changes to =SUM(A10:E10). This means that the program will compute the following sum:

Cell A10 + Cell B10 + Cell C10 + Cell D10 +  Cell E10

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i believe the above answer to be correct;