The only complete pattern is the middle one
we see that 38-29=9
so the middle number minus the first number equals the third number
for the last row
21-1=20 so you have 1 21 20
for the first one
17- ?=37
54-17=37 54 17 37
Easy, the answer is 1,588 million barrels of oil produced in country B... just add 1372 to 216...
Answer:
7
Step-by-step explanation:
Answer:
Step-by-step explanation:
-x + 2y = 8
-2x + y = -5
2x - 4y = -16
-2x + y = -5
-3y = -21
y = 7
-x + 14 = 8
-x = -6
x = 6
(6,7)
Answer:
48h
Step-by-step explanation:
55+h=55h
55h-7h=48h
