True and false. 1. If x = 5, then 6x + 7 is 36.
2. b- + 2b - 3 is 12 when b = 3.
3. 2xy + 15 is 31 when x = 4 and y = 2
when x = 10 and y = 2.
5. Ifc = 2 then cis 512.
2. b- + 2b - 3 is 12 when b = 3.
3. 2xy + 15 is 31 when x = 4 and y = 2
when x = 10 and y = 2.
5. Ifc = 2 then cis 512.
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