Answer:
14
Step-by-step explanation:
f(x)=3x²+1
f(2) = 3 x 2² + 1 = 13
g(x) =1-x
g(2) = 1 - 2 = -1
(f-g)(2) f(2) - g(2) = 13 - (-1) = 14
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Thus ;
9/4
(8+1)/4
8/4 + 1/4
2 + 0,25
2,25
d) Let the cost of one group lesson be x and one private lesson be y