Answer:
-8
Step-by-step explanation:
5(x+12)= 20
5x+60= 20
5x= -40
x= -8
Answer:
I think the answer for the first one is 3 I am not sure about the second one
x= -15/4 => x= -3 3/4 or x= -3.75
Answer:
<h2>1529.4 m³</h2>
Step-by-step explanation:
Volume of a pyramid can be found by using the formula

a is the area of the base
h is the height
Since the base is a square we have

We have the final answer as
<h3>1529.4 m³</h3>
Hope this helps you