Answer:
<em>24 children</em>
Step-by-step explanation:
If the length of time, y hours, it takes to put a jigsaw puzzle together is inversely proportional to the number of children, x, this is represented as;

k is the constant of proportionality
If it takes 16 children 6 hours to put the jigsaw puzzle together, this means at x = 16, y = 6
Substitute:
6 = k/16
k = 6*16
k = 96
W are to find number of children needed to put the same jigsaw puzzle together in 4 hours, this is done by substituting k = 96 and y = 4 into the expression y = k/x
y = 96/4
y = 24
<em>Hence it will take 24 children to put the same jigsaw puzzle together in 4 hours</em>
<em></em>
Option A and Option F
The expressions that represent the perimeter of rectangle are 4s + 1 and 
<em><u>Solution:</u></em>
From figure,
Length = s
Width = 
<em><u>The perimeter of rectangle is given as:</u></em>
perimeter = 2(length + width)
Substituting the values we get,

Thus option F is correct
On further simplification,

Thus Option A is correct
Answer : The volume of box B is 
Step-by-step explanation :
Given :
Volume of box A = 512 cubic meter
Let us assumed that the box A and box B are cubes and the dimensions of cube are same i.e, 'a'.
Volume of box A = V = 
As per question,
When dimensions of box A divided by 2 then the volume of box B will be:
Volume of box A = V' = 
As the box B is similar to box A. So, the volume of box B will be:
Volume of box B = V' = 


Therefore, the volume of box B is 
Answer:
1. Given
2. Distributive property
4. Division property
Step-by-step explanation: