A) 4+10+8=
B) 5-9+1=
C) -8-2+3=
D) -15+8-7=
E) 24+6-12=
F) 18-3-21=

See below.

Step-by-step explanation:

A) 4 + 10 + 8 = 22

B) 5 - 9 + 1 = -3

C) -8 - 2 + 3 = -7

D) -15 + 8 - 7 = -14

E) 24 + 6 - 12 = 18

F) 18 - 3 - 21 = -6

A)4+10+8= 22

B)5-9+1= -3

C) 8-2+3= 9

D)15+8-7= 16

E)24+6-12= 18

F) 18-3-21= -6

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answer: there are 453.592 grams in a pound.

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction