Find the common difference of the arithmetic sequence -6, -13, -20,...

Common difference = 2nd term - first term

= -13-(-6)

= -13+6

= -7

-7

Step-by-step explanation:

arithmetic sequences are consistant sequences by adding or subtracting a constant term, in this case to get from -6 to -13, you subtract 7. And to get from -13 to -20 you subtract 7 again. The next number in the sequence would be -27 as -20-7= -27

Hope this helps!

but which class are u may know that first