Assume 1 small bub side = 2cm
area = 2 × 2
= 4 cm²
total area of small bub
4 × 4 = 16cm²
area of big bub = total area of small bub
= 16cm²
one side of big bub
16 ÷ 4 = 4
1 small bub side : 1 big bub side
2 : 4
1 : 2
the side length of the large square is 2 times bigger than the side length of one small square.
Answer:



Step-by-step explanation:
1. Given, u = 20 , x = 4 , y = 7 , z = 10

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2. 
Multiplying or dividing a positive integer by any negative integer gives a negative integer
= - 8
3. 
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Hope I helped!
Best regards! :D
The correct answer will be 0.00038
The easiest way to solve is if the exponent is positive you move the decimal to the right and if the exponent is negative the decimal moves to the left.
The volume of the triangular prism = 
Thus the volume is
.
Thus the volume is 42 cubic km.
Hope that helps!