The compound inequality which represents the number of ounces of clay is c≤4.5 or c≥12.
Given ELISA uses no more than 4.5 ounces of clay and to make a large vase, she uses at least 12 ounces of clay.
Let c denote the wide variety of oz of clay that Elisa makes use of to make one vase of both length.
The words "no more than" implies "much less than or equals to".
So, for a small vase c must be less than or equal to 4.5 ounce, which gives
c≤4.5 ...(1)
And to make a huge vase, she makes use of as a minimum 12 oz of clay.
The word "at least" implies "extra than or equals to"
So, for a large vase c must be more than or equal to 12 ounce, which gives
c≥12 ...(2)
By combining equations (1) and (2), we get
c ≤ 4.5 or c ≥ 12
Hence, the compound inequality represents the number of ounces of clay, c, that ELISA uses to make one vase of either size is c≤4.5 or c≥12.
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