3. An operation is defined by b d= b - 4d. Find: a) 1 3
b) 3 1
c) 3
d) (1 3) 5
e) 1 (35)
Is * commutative? Is * associative? Give reasons for your answer
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When are two distinct non vertical lines parallel

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

Which geometric principle is used to justify the construction below?