Brenda pours 1/2 of a bottle of soda into a punch bowl then she pours two 8 Oz cups for Tim and Ellen she pours 4 Oz for her father and 1/2 of what is left for her sister there is just enough left for Brenda to have a 4 Oz cup how much soda was in the bottle when she started? Pls help and no links pls

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Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.