PLZ HELP ME THIS IS 7TH GRADE MATH I NEED HELP ASAP

Step-by-step explanation:

To get the circumference of a circle: 2×radius

Your circle has a given diameter of 3 feet.

To get the radius: 3 ÷ 2 = 1.5

To get circumference of this circle: 2 × × 1.5 = 9.424777961......

Approximately 9.424 feet

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225