Answer:
25
Explanation:
We are given the sequence formula expression;
ax = 3x + 4
You are to get the 7th term. This is gotten by substituting x = 7 into the expression as shown;
a7 = 3(7) + 4
a7 = 21 + 4
a7 = 25
Hence the seventh term of the sequence is 25
The perimeter should be about 66
(f+g)(x)=f(x)+g(x)=3x+1+x²-6=x²+3x-5
answer is D
