Question 97374
f(x)=3x-10 and g(x)=3x+7
(a) g(-1) = 3(-1)+7 = -3+7 = 4
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(b) f(1)-g(2) = [(3*1)-10] - [(3*2)+7] = [-7] - [13] = -20

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Cheers,
Stan H.