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1. A={a, b, c, d} and B= {a, b, c,} then;
a. A ⊂ B
b. B ⊆ A
c. B ⊂ A
d. A ⊆ B
2. What is the coefficient of X in the expression y²x + y?
a. y²
b. y
c. 1
d. 0
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