Answer:
use the pythagoras theorem
Step-by-step explanation:

Answer:
.
Step-by-step explanation:
From the given table it is clear that x and y are linearly related.
Now, any two points that satisfy the relation between x and y are sufficient to express the equation.
The first two given points are (2,3), and (4,4).
Therefore, the equation is
⇒
⇒
⇒
. (Answer)
To estimate the unit rate, we should round the 5.79 to 6. This makes it much simpler to solve as 6 is a multiple of 12. The unit rate, in this case, is the price of 1 pair of socks. We can find this by dividing both the price and pairs of socks by 12. When we do this, we can see that each pair of socks is approximately $0.50.
Answer: -32
Step-by-step explanation:
Plug in y.
4*4-4*4+4-36
16-16+4-36
4-36
-32
Answer:
$0.07
Step-by-step explanation:
nails = 3.10/155 = 0.02/piece
screws = 7.65/85 = 0.09/piece
0.09 - 0.02 = 0.07