Answer:
the number that goes in the blank is 8
Step-by-step explanation:
I think you mean,

You can use the usual formula,

That in this case is,

Where I have used,
Answer:
$42
Step-by-step explanation:
138/23 = $6 per kg
6*7 = 42
Answer:
x=-8 where A=1 and B=0
Step-by-step explanation:
The given line's graph is x=-8. Since there is no y, they coefficient in front of y, B, will be 0, and since there is only one x, that coefficient in front of the x, A, will be 1.
Answer:
Hey there!
(2p - 3)(4p2 + 6p + 9) is equal to 8p^3+27. This is just a sum of cubes!
Let me know if this helps :)