A

1 3
2 = 12 + A1
3 = 12 + A2
4 = 12 + A3
5 = 12 + A4
6 = 12 + A5
7 = 12 + A6

The number 3 was typed into cell A1 of a spreadsheet, while in cells A2 through A7, formulas were typed in as shown.

If the values produced by the formulas were displayed in the spreadsheet, instead of the formulas themselves, what would be the value displayed in cell A7?
Responses
A 25
B 28
C 75
D 84

B. 28

Explanation:
A2 = 12 + A1 = 12 + 3 = 15
A3 = 12 + A2 = 12 + 15 = 27
A4 = 12 + A3 = 12 + 27 = 39
A5 = 12 + A4 = 12 + 39 = 51
A6 = 12 + A5 = 12 + 51 = 63
A7 = 12 + A6 = 12 + 63 = 75