Hello :
<span>If f(x)=x/2-2 and g(x)=2x^2+x-3, find (f+g)(x)
</span>(f+g)(x)= f(x) +g(x) = x/2-2 +2x²+x-3 = x/2 +2x²+x-5
(f+g)(x)= (x+4x²-2x-10) /2
(f+g)(x)= (4x²+3x-10)/2 = 2x²+3/2 x -5
Answer: $8470
Step-by-step explanation:
To solve this, you can substitute 4 for x:

Mikayla's scooter is worth around $8470 after 4 years.
It was originally worth 13,500 dollars and depreciated by 11% every year.
Answer:
49 kilometers
Step-by-step explanation:
Since he cycles 1 km for each trip, he will have cycled 21 km after 21 trips.
Add this to his existing amount of km:
28 + 21
= 49
So, he will have cycled a total of 49 kilometers
2 1/7 X 3 2/3
first change into improper fraction
15/7 X 11/3
you can divide the 15 and 3 by 3 so it would be
5/7 X 11/1
and you get 55/7 or 7 6/7
True, look at a tissue box the bottom is the same size as the front