It is presumed that the 10m is the vertical distance in 4 floors so 10meters divided by 10 seconds is 1m/second is the average speed of the escalator. Hard to add anything to this to make up to the required 40 words.
Answer:
4/7
Step-by-step explanation:
9 - 1 = 8
8/14 = 4/7
The solid shape is a cone and a half sphere. So the equation would be (cone volume) + (1/2 sphere volume):

If the volume of the cone is 270pi and the height of the cone is 10, then:

The radius of the object is 9 cm. Therefore, we can plug into the formula for the total volume:

The total volume is 513 pi cm^3
Answer:
10.44
Step-by-step explanation:
58% of 18 = 10.44