The cost to make 4 large candles and 5 small candles is $8.40. The cost to make 5 large candles and 7 small candles is $10.80. How much more does it cost to make a large candle than a small candle?

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What ia the sum if the first 7 terms of the geometric series

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.