Answer:
a. addition property of equality
Step-by-step explanation:
2x was added to both sides
Answer:
60%
Step-by-step explanation:
The 2100 people surveyed said they would buy it again, meaning they were satisfied. A total of 3500 people were surveyed.
So 2100 / 3500 = 60%
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Answer:
AC = (20+ 10q)
Step-by-step explanation:
Given that,
Total cost, TC = 20q + 10q²
We need to find AC i.e. average cost.
It can be solved as follows :

So, the value of AC is (20+ 10q).
Answer:
a convenience sample is always valid and reliable is true not false
Step-by-step explanation: