3. Is going to be 7*12= 84 inches because the tree is drawn as 7 inches in the scale and for every inch in the scale, it is 12 inches in real life.
4. Is going to be similar since for every inch on the map the meter in real life is 30 so 2.5*30= 74 meters.
Hope I explained it enough that you understand the concept and not just gave you an answer.
Answer:

Step-by-step explanation:
we know that
If the lines m and n are parallel
then
----> by corresponding angles
solve for x

Answer: 40 centimeters is 15.748 inches.
Step-by-step explanation:
To start things off, a centimeter is equal to about 39.37 inches. If you want to know how to multiply a centimeter to get an inch, just multiply the quanity in centimeter by 0.39370078740157 or into smaller terms, 39.37. By doing so, you will get the answer, 15.748 inches by multiplying by centimeters.
Your question seem to me non-understandable. Are they adding up together ?
or multiplying ?