Apostrophes are used to indicate . long quotations
lists
appositives
possession

possessions because lists use commas and appositives replace nouns.

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hope it helps

possession

Step-by-step explanation:

look at photo

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb