Answer:
2x^2 + 13x + 15
Step-by-step explanation:
The answer is A, because the ocean floor is -5 or below the sea level,so that makes the sea level=0, and the summit is 5km because if the whole thing is 10 km above the ocean floor, so 10+(-5)=5km.
Answer:
I put a pic, i hope ill help :)
Answer:
6(a)+14
Step-by-step explanation:
First you need to find f(a) and f(2) separately, then add them together after
f(a) = 6(a)+1
f(2) = 6(2)+1 = 12+1 = 13
so f(a)+f(2) = 6(a)+1+13 = 6(a)+14