Answer:
16
Step-by-step explanation:
[tex]28-\sqrt{144}=28-12=16[/tex]
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It works well to use the usual math symbols. The Brainly equation editor can properly format math expressions. A square root can also be properly indicated several other ways:
sqrt(144)
144^(1/2) . . . . . . the half power of a number is its square root
√144