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2
O A. Number of half-unit cubes = 20
V= 2 cubic units
B. Number of half-unit cubes = 10
V= 5 cubic units
C. Number of half-unit cubes = 10
V = 2 cubic units
D. Number of half-unit cubes = 20
V = 10 cubic units

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

1/800 is the right answer

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: