Answer:
A. A number divided by three minus fifteen.
Answer:
3rd one
Step-by-step explanation:
This looks hard... good luck ! :D
Answer:

Step-by-step explanation:

Differentiate:

Substitute
into
:

Therefore, 68 is the gradient of the tangent line at x=7:

when
, 


Answer: -4
Step-by-step explanation: well when it’s absolute value the -5 turns to positive 5 and the value of -9 turns to positive 9. So that leaves 5-9=-4