Alexa, Tiffany, and Esther are selling food at the state fair. Alexa sold 8 bags of popcorn, 12 bags of cotton candy, and 15 funnel cakes for a total of $196. Tiffany sold 10 bags of popcorn, 16 bags of cotton candy, and 6 funnel cakes for a total of $146. Esther sold 9 bags of popcorn, 11 bags of cotton candy. and 21 funnel cakes for a total of $246. How much does each item cost?

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.

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?

The water aquarium shark tank is always greater than 25 feet of the water level decreased by 6 feet during cleaning what was the water level before the cleaners took out any water