Answer:

Step-by-step explanation:



x € R
Answer:
i don't know maybe D. 2 and 3
The function represents a linear relation so I assume the answer is B neither
Answer:
string
Step-by-step explanation:
beacuse module,battery,array are same
Answer: The price of system at extreme electronics is $570 and the price of system at ultra electronics is $395.
Step-by-step explanation:
Let the price of the system at the ultra electronics be u
Let the price of the system at extreme electronics be e
According to question, we have

Now, using the substitution method, we will solve the above system of equations.

Now, put the value of u in the first equation :

Now, we put the value of u in the equation which is given by:

Hence, the price of system at extreme electronics is $570 and the price of system at ultra electronics is $395.