Answer:
5
Step-by-step explanation:
the answer is 5.75, but when rounded off, it will become 5
Answer:
area is how big the surface is，volume is the capacity of the shape
Let the unknown number be x.
x × -7 = 7 (x + -40)
-7x = 7x - 280
-14x = -280
x = 280/14
x = 20
Hope this helps!
