Please help me out wit this question

Area of the circular sidewalk = 405 m²

Step-by-step explanation:

Radius of the circular flower bed = 20 m

Area of the circular bed = πr²

Here r = radius of the circle

Area of the circular bed = π(20)²

                                        = 400π square meter

Radius of the larger circle = Radius of the flower bed + width of the sidewalk

= 20 + 3

= 23 m

Area of the larger circle = π(23)²

                                        = 529π m²

Area of the circular sidewalk = Area of the larger circle - Area of the flower bed

                                         = 529π - 400π

                                         = 129π

                                         = 129(3.14)

                                         = 405.06 square meters

                                         ≈ 405 square meters

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.