ok I have no Idea just wanted to tell you your killua profile pic is cute
Answer:
-1
because you are adding up to 0 to get back to the positive.
The missing number is 23 because,
there is 3 feet in 1 yard
so, 7x3=21
21+2=23
so 7 yards and 2 feet = 23 feet
Answer:
Pack of 6 apples for £1.65 is better because the price of 1 apple is less in this answer.