The right amount to test would be 30.
200 is to many kids and 12 is not enough.
Hope this Helps!!
Answer:
16 units
Step-by-step explanation:
6.1 + 5.8 + 4.1 = 16
The given expression is :
2xx+3-5(x-2)
We know that,
Aleena expands 2xx+3-5(x-2) as 2x²+3-5x-10. She is mistaken because the sign before 10 should be +10 instead of -10. Hence, the correct expanded form is 2x²+3-5x+10. Hence, this is the required solution.