375.5x2, 375.5/4 = 93.875, so the answer is 844.875
2g^3+24g^2-g-1 is the answer
Can you re order them I don’t understand your problems
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Check if you can write an equation relating the term number to the actual value
n1=3
n2=10 = 3+7
n3= 17 = n2+7 = n1+7+7 = n1 +2*7
n4= 24 = n1+3*7
so you will notice a pattern
for the x-th term
n_x =3+(x-1)*7
the 50th term would be n_50 = 3+(50-1) * 7