WILL GIVE 69 POINTS FOR HELP PLEAAAZE Select all that apply

A city park commission received a donation of playground equipment from a parents' organization. The area of the playground needs to be 256 square yards for the children to use it safely. The playground will be rectangular.
The city will pay to have soft pavement made of recycled tires installed in the playground. In the first plan, one side 8 yards longer than the other side. Which equations model the possible dimensions of the playground?

x( x + 8) = 256
( x2) - 8 = 256
x2- 8 x - 256 = 0
( x + 4)( x - 4) = 256
x( x - 8) = 256

x( x + 8) = 256

Step-by-step explanation:

let one side be x

if x is 8 yards longer than the other side, then the other side is x + 8

so, x( x + 8) = 256 equations model the possible dimensions of the playground

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54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.