A store sells t-shirts for $12 each and sweatshirts for $15 each.
Marie plans to spend $120 on t-shirts and sweatshirts.
If she bought 3 t-shirts, how many sweatshirts can she buy?
answer=
Choose the correct equation
a) 2x + 5y = 120
b) 12x + 15y = 120
c) 15y = 2x
d) 12x - 15y = 120
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i don't know
Step-by-step explanation:
Classification is used for studying biological organisms easily as it allows us to group same type of organisms together.
Explanation:
We can learn characteristics of an organism and that gives us idea about all organisms included in the same group. Classification allows us to study innumerable biological organisms of earth in an organised way.
Classification also helps us to understand evolutionary relationships between different groups.
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