First you collect the like term then variable one side coefficient one side and constant
Answer: 9
Step-by-step explanation:
A=(a+b)/2 *h
135= 30/2* h
135= 15 * h
135/15= h
9=h
The prefix that means hundredth is centi
It should be A because C cannot exist at the moment. B and D are clearly slopes, so it has to be A.
