Find the mean, median, and mode. Round to the nearest tenth when necessary. 20, 4, 8, 9, 15, 20, 8, 20
OA mean: 13, median: 12, mode: 20
OB mean: 11.2, median: 12, mode: 8
OC mean: 11.2, median: 12, modes: 8 and 20
OD mean: 13.7, median: 12, mode: 8 and 20

step-by-step explanation:

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the area of ​​the surface of the rectangular prism here is 250 cm2, which is the surface of the shading

step-by-step explanation:

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !