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Answer:
Domain={0,30},Range={0,600}
Step-by-step explanation:
Total umbrellas=30
Price of each umbrella=$20
m(u)=20u
where
u is number of umbrellas
m(u) total amount vendor makes by selling u number of umbrellas
So Practically,The extreme cases are
- when the vendor sells 0 umbrellas/ no umbrellas
- when he sells all the umbrellas
So Domain is {0,total number of umbrellas}={0,30}
Putting this extreme value of domains as u in function m(u),
we get the range of m(u)={0$20,30
$20}
⇒ Range={0,$600}