I need help please what’s the answer?

The terms combine into 9x + 17

Step-by-step explanation:

What you need to realise here is that the brackets don't serve any real purpose, as there's no operation being done on their contents as a whole.  With that in mind we can simply drop the brackets and group like terms:

(4x + 8) + (5x + 9)

= 4x + 8 + 5x + 9

= 4x + 5x + 8 + 9

= 9x + 17

So the terms combine into 9x + 17

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

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