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b. a ≤ 7
c. b ≥ -1
d. w ≥ 8
e. t ≤ 10
f. x < 0
b) a ≤ 7
c) b ≥ -1
d) w ≥ 8
e) t ≤ 10
f) x < 0
b.a≤7
c.b>-1
d.w≥8
e.t≤10
f.-x