The unit rate of road construction is 2 miles per day.
Step-by-step explanation:
Given,
In 
days 
miles road is constructed.
To find
The rate of road constructed per day
Method
We will apply unitary method to solve it.
Now,
In days miles road is constructed.
In 1 day the road will be constructed = ÷ miles
= 2 miles
Answer: The answer is A
Step-by-step explanation: 4c+6a<120 and 4c+4a<100
Irrational numbers. √7 is an irrational number.
Absolute value means the distance from 0.
|-0.45| =0.45
|-0.0045|=0.0045
0.45>0.0045
So
|-0.45|>|-0.0045|
