Please solve this as soon as possible

Below in bold.

Step-by-step explanation:

The total sum of the numbers in A is 124 and the sum of the numbers in B = 56

Let x be the number passed from A to B, then from the given information:

124 - x = 56 + x + 20

124 - 56 - 20 = 2x

48 = 2x

x = 24.

a) So the number passed is 24.

b) Sum of numbers in B = 56 + 24 = 80.

c) Let pencil cost x then pen will cost 1.1 - x.

Now the pen costs 1 pound more than the pencil

so  1.1 - x - x = 1

-2x = -0.1

x = 0.05.

So the pen costs 1.1 - 0.05 = £1.05.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.