Hello,
Please, see the attached file.
Thanks
Answer:
Terms: 
Like Terms: 
Step-by-step explanation:
Given

Required
List out the terms and like terms
The terms of a mathematical expression:
are a, b, c and d
Using the same yardstick as above;
The terms of
are

To get the like terms, we look for terms with the same variable
have the same variable of x^2
Hence, they are like terms
Step-by-step explanation:
area of circle= πr²
3.14×7×7
153.86 is the required area
Answers of "a" is -66, 18 pls show how to get to the answer of "a"