Please help if you can! Thank you!

Pepe is going to spin the following spinner 800 times. the spinner is divided into equal sections.a. exactly 160 timesb. clost to 160 times but probably not exactly 160 timesc. exactly 640 timesd. close to 640 times but not probably not exactly 640 times. me

Which expression is equivalent to? assume x > 0 and y > 0.

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?