Answer: 
<u>Step-by-step explanation:</u>
Average rate of change is the slope (m) between the two coordinates (0, 2) and (2, 1).



Multiply 5/7 by 2 to get 10/14.
Answer:
$1.6
Step-by-step explanation:
We need to find the cost of 80 cm of copper pipe at $2 a metre.
Cost of 1 metre = $2
80 cm = 0.8 m
It means,
0.8 m = $2 × 0.8
= $1.6
So, the cost of 80 cm of copper pipe is equal to $1.6.
Answer:
sorry
Step-by-step explanation:
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