First change the 4

to 4

.
Then multiply 4

and 3

The answer would be D) or 14

in².
(3x+7)+(4x+9)=-58
first add like terms
7x+16=-58
subtract 16 from both sides
-7x=-74
divide -7 from both sides
x=10.6
its 10.6 units long
Do you have a picture of the whole question?
Answer:
-12
Step-by-step explanation:
f(-9) = 2/3(-9) + (-6)
f(-9) = -6 + (-6)
10.31991744 meters per second