Answer:
made a mistake in step 3
Step-by-step explanation:
from step2; 1/3k=15 then making k the subject ,k=15*3 so the value of k will be 45
Answer:
The volume is 
Step-by-step explanation:
From the question ,
and 
The volume of a pyramid is given as

From the question, the base of the pyramid is a square.
Hence base area is given by 
This implies that the volume of the pyramid is




Y1 is 3x, y2 is x^3 and y3 is 3^x
15 toys after he starts with 3 toys from a month and then keeps collecting more for 4 month. It would be the over all of 15 toys..Hope that helps<span />