document.write( "Question 175983This question is from textbook Elementary Mathematical Modeling Functions and Graphs
\n" ); document.write( ": I'm given a scenario describing that for the first ounce in First Class Mail the rate is $0.37 and each additional ounce after that has a rate of $0.23 per ounce. Part (d) is asking me to write a multipart rule for the First-Class Mail rate function R(w), giving the rate in dollars and cents as a function of the weight in ounces.\r
\n" ); document.write( "\n" ); document.write( "and (e) what are the domain and range of the function R?
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Algebra.Com's Answer #131133 by Mathtut(3670)\"\" \"About 
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\"R%28w%29=.23w%2B.37\"
\n" ); document.write( ":
\n" ); document.write( "domain: natural numbers {1,2,3...}
\n" ); document.write( "range: rational numbers{w:w>=.37}
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