Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:
The common ratio can be found by finding the quotient of a term and the previous term in the sequence.

The common ratio is -0.5.
The rule is to multiply a term in the sequence by -0.5 to get the next term.
Next 3 terms :

The next 3 terms are 0.875, -0.4375, 0.21875.
Add f and g together:
4x + 6 + 9x +9 ( Combine like terms)
13x+15
Now replace x with -6 and solve:
13(-6) +15 = -78 +15 = -63
The answer is -63