Answer:
A = -2.2
B = -1.7
C = 1.87
D = 19.97
Explanation:
A = 7.4 - 9.6 = -2.2
B = -2.2 + 0.5 = -1.7
C = -1.1(-1.7) = 1.87
D = 18.1 + 1.87 = 19.97
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