Step-by-step explanation:
This sequence is the table of 7 it is negative we will continue so
-7 -14 -21 -28 -35 -42 -49
A --------¢ D
B --------¢ E
C --------¢ F
Just match like this buddy.
30 + 2x = 90
2x = 60
x = 30
Answer:
x = 30
I have no idea how to answer that, sorry :(