Answer:
[0;52]-->[285;9645]
Explanation:
Jeanette begins collecting Magic: the Gathering cards by buying a starter set of 285 cards on her birthday. Each week thereafter. Jeanette buys three booster packs of 15 cards each.
Jeanette begins collecting Magic: the Gathering cards by buying a starter set of 285 cards on her birthday. Each week thereafter. Jeanette buys three booster packs of 15 cards each.After four years (52 weeks in one year, so 52 x 4 = 208 weeks). her interest in the game wans, and she stops buying cards.
C(w)=285+3x15xW=285+45w
C: [0;52] c N ---> [285;9645] c N
[tex]285 \leqslant c \leqslant 9645 [/tex]
[tex]0 \leqslant w \leqslant 52[/tex]