I think it’s just asking you to add the two functions (f + g)(x)
If f(x) = sqrt x + 3
And g(x) = x + 2
Then (f + g)(x) = (sqrt x + 3) + (x +2)
And I’m pretty sure that’s all you can simplify
6 groups of 3 6 times 3 which equals 18
and 18 divided by 4 is 4.5 so it takes 5 cars.
Answer:

Step-by-step explanation:
So we have the equation:

First, combine like terms:"

Now, add 1 to both sides:

Divide both sides by 3:

And we're done!