Answer:
its the first top one the 3rd one and the bottom one
Step-by-step explanation:
The usefulness is that this data allows you to understand how well students perform with their instruction, based on a standardized test. The limitation is that the scores don't account for different situations that may affect the results you receive.
Answer:
E: all real numbers
Step-by-step explanation:
The area of smaller square is 81
10xy+2y+8x+7
Explanation
3xy + 4xy + 3xy = 10xy
The others cant be simplified so
10xy + 2y + 8x + 7