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Moving to another question will save this response. Question 13 Let a and b be any integers. Then a b O A. a b O B. a b O C.-a b D. a (b) A Moving to another question will save this response. O Type here to search

Solution

1) a - b

It can written as

= a + (-b)

Option D

2) 180 = 2*2*3*3*5

= 2^2 *3^2*5

OPtion D