Which expression is equivalent to 13 - (-21)13−(−21)13, minus, left parenthesis, minus, 21, right parenthesis?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
-21-13−21−13minus, 21, minus, 13

(Choice B)
B
-21+13−21+13minus, 21, plus, 13

(Choice C)
C
-13+21−13+21minus, 13, plus, 21

(Choice D)
D
13+2113+21