Finds area using sq. cm sq. m​

Evaluate the following expression when a = -4

and b = 1/2.

b|3a – 81 – 3/2 – 2a

a) -40

c) 20

b) -20

d) -10

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it

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