Whales eat fish and their bigger
It is Z1 and Z4 only... Answer is number 1
A observation! Hope this helps you!
Answer:

Explanation:
we have

Solve for x
That means----> Isolate the variable x
Applying the distributive property both sides

Remember that


Combine like terms left side

Adds 7x both sides


Adds 4 both sides


Divide by 9 both sides

Hydro- meaning Hydrogen.
Carbon- meaning Carbon.
Hydrogen and Carbon. Carbon atoms form the framework, and Hydrogen atoms attach to them in many different configurations.
Hope this helps!