Help please, I'll give brainliest :< to whoever can answer and give the solutions​

1.  -2, -1, 0, 1, 2.

Solution:

Let x be the middle term of this sequence of 5 terms.

Then the sequence is x-2, x-1, x, x+1, x+2.

The sum of the terms is (x-2) + (x-1) + x + (x+1) + (x+2) = 5x.

Thus 5x = 0.

It gives x = 0.

So the sequence is  -2, -1, 0, 1, 2.

2. 24

Solution:

Let x be age of Iori and

2x would then be Karen's age (twice as old as Iori), then,

(x + 2x) + 6* = 42 ( 6 because three years times two = 6 (of course they both get older three years from now))

3x +  6 = 42

3x = 42 - 6

3x = 36

x = 36/3

x = 12

Substituting, we'll have;

Iori = 12

karen = 24

3. 10 weeks

Solution:

4,000÷400=10

for making sure: 400×10=4,000

Mark me brainliest if this helps :)

3. Fifteen weeks

Step-by-step explanation:

well if you subtract the 4000 from the 10000 you get 6000 and then divide 6000 by the 400 and you get 15

.mp4 files, because, video

2nd one in the first row is correct