Answer:
Volume of the pyramid = 16m³ or 16 cubic meters.
Step-by-step explanation:
The equation for the volume of a pyramid is:

where b = area of base and h = height.
In this case, the base is a square with a side length of 4m.
Area of the square base = (4m)² = b = 16m²
h = 3m
Insert b and a into the volume of a pyramid equation.

= 16m³
Volume of the pyramid = 16m³ or 16 cubic meters.
Answer : The equation could you use to find p is, 
Step-by-step explanation :
Let the cost of 1 pen be, 'x'
and the cost of 1 pencil is, 'p'
As we are given that total cost of 1 pen and 1 pencil is $2.10. The equation will be:
............(1)
And we have also given that the pen costs twice as much as a pencil. The equation will be:
............(2)
Now put the equation 2 in equation 1, we get:


Thus, the equation could you use to find p is, 
Step-by-step explanation:
first way by sitting 3 person in one chair
the main equation you need to do is just 36 x (3/4), you will get that 27 dollars has been spent.
now you just do 36 - 27 to get the final answer
Answer:
Step-by-step explanation:
a convex pentagon is basically just a pentagon which sides are either less than or equal to a straight angle