Answer:
As the height increases, the temperature decreases.
It is decreasing 5°C per kilometer.
At the height 8 km the temperature is 0°.
140 (number of customers) * .65 (% of customers who ordered a large coffee) = 91 customers who ordered a large coffee
I'm sorry but what was the question? Uploading the Image would be helpful.
Using distributive property, we get:
3x-9=0
3x=9
x=3
So, x=3. Now that was easy, huh? :)
