It’s an expression. there is no like terms within the expression so it remains the same. each variable is different because of either the “a, b, x, y” or the squared.
<h3>
<u>Answer the following questions :-</u></h3>
Raja is junk seller. He sells many things. Here is given the list of junk.
Check the Raja's rate list and solve the following questions.

<h2>
<u>Solutions :-</u></h2>
1. How much money will you pay to Raju for 20 kg of newspapers?




<u>∴ We need to pay Rs.100 for buy 20 kg of newspapers. </u>

2. What is the cost of 5 kg Iron?




<u>∴ The cost of 5 kg iron is Rs.50.</u>

3. What is the cost of 9 kg Plastic?




<u>∴ The cost of 9 kg plastic is Rs.72. </u>

4. What is the cost of 7 kg Brass?



<u>∴ The cost of 7kg brass is Rs.350.</u>

Answer:
you did not even put anything except "HELP PLEASE IM HORRIBLE WILL GIVE BRAIN LIST IF RIGHT"
Answer:
concrete operational stage
Step-by-step explanation:
Have a look at the attached photo below, it may be your full question:
The concrete operational stage is the third phase in Piaget's cognitive development theory. This period spans the period between childhood, it begins around 7 years of age and continues until about 11 years of age and is characterized by the development of logical thinking.