Which number is next 2 7 8 3 12 9

Next number is 4.

Step-by-step explanation:

Given :  2 7 8 3 12 9

To find : which number is next

Solution : We have given that  2 ,7 ,8, 3 ,12 ,9.

We can see this  it has two group ( 2,7,8) ;( 3 , 12, 9)

Second group is created by first

First number on adding 1 in 2

Second number on adding 5 in 7

Third number on adding 1 in 8

Now we can create next group by second group

3 + 1 = 4

12 + 5 = 17

9 +1 = 10

Then next group would be ( 4 ,17,10 )

Therefore, Next number is 4.

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)