Let, initial side is a.
When side is n times long, new side na.
Initial volume, 
Final volume, 
Change in volume, 
For, n = 2 :

n = 3 :

n = 10 :

Hence, this is the required solution.
Answer:

Step-by-step explanation:
We are asked to write an expression that is the product of two factors and is equivalent to
.
We can see that greatest common factor of both terms is 5 as 5 times 6 is equal to 30.
Let us factor out negative 5 from both terms as:

Since the expression is product of two factors, therefore, our required expression would be
.
1) function: P = 120 (1.0160)^t, t in years
2) weekly function
w = 52 * t = 52t
=> P(w) = 120 (1.016)^ (52w)
3) growth rate = d P(w) / dw
d P(w) / dw = 120 * 52 * [ 1.016 ^ (52w) ] = 6240 [(1.016) ^ (52w) ]
4) solution of the equation
Separate variables
d P(w) = [ 6240 (1.016) ^ (52w)] dw
integrate from w = 0 until w
P(w) - Po = 7599.84 e ^ (0.82514w)
P(w) = Po + 7599.84 e ^ (0.82514w)
Answer:
600cm2
Step-by-step explanation:
Area of sheet = Length × Breadth
= (30 × 20) cm2
= 600 cm2