The formula of an area of a circle:

We have
r = 1.8 m
π ≈ 3.14
Substitute:

The answer is -9x + 6 2/3.
Answer:
452.39 sq.unit is the area of that circle.
You are going to write 7% as a fraction thusly 7/100
Then you are going to multiply it with the cost price
Therefore it will be 7/100x150
The answer is -34
Explication
2✖️(-12)-10
-24-10
-34