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.
Answer:
4k+11
Step-by-step explanation:
There you go. Happy to help.
No 5/8 is not greater then 2/3, 5/8 is just 1/24 smaller then 2/3.
Answer:
We just finished this in geometry and i hated it lol but i think <DBA and <CBA are equal and AD=AC