Re: An ice-skating rink charges $\$ 6$ for admission. It costs $\$ 4$ per
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25 Apr 2025, 04:00
The cost of rentinganice-skatesis $\$ 4$ per day. The cost of buying new ice-skates is $\$ 36$. If the skates are used 9 times, the expense occurred by renting or buying is the same (since the rent for 9 days $=9 \times 4=36$ ).
Hence, if the ice-skates are used more than 9 times, the rent will be more than the cost of buying the skates. Thus, the correct answer is 10 .