Janine is twice as old as her brother Mark at the center of their ages is 24 hot how old is Janine
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The compound inequality that gives the normal range for the pH values of lemon juice is given by:
A compound inequality is modeled by:
Which means that x is greater than a and less than b. In this problem, the pH is greater than 1.5 and less than 4, hence the inequality is given by:
More can be learned about compound inequalities at brainly.com/question/24528399
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