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Mathematics
OpenStudy (anonymous):

a) Find (A ∩ B) ∩ C, given A = {s, e, t}, B = {m, e}, and C = {f, r, e, e}. b) Find A ∩ (B ∩ C), given A = {s, e, t}, B = {m, e}, and C = {f, r, e, e}.

OpenStudy (saifoo.khan):

a) e

OpenStudy (anonymous):

Please can someone help me this is hard for me? thx

OpenStudy (anonymous):

what is b thx

OpenStudy (saifoo.khan):

b) e

OpenStudy (anonymous):

thx

OpenStudy (saifoo.khan):

:)

OpenStudy (anonymous):

Use the definition of subtraction to rewrite the subtraction equation as an addition equation. a) 34 - 6 = x b) x - 64 = 80

OpenStudy (anonymous):

can u help me with this?

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