Marco has 102 ounces of pizza dough. He uses 13 ounces of dough to make each pizza. He uses 2 ounces of dough to make each breadstick. How many whole pizzas can Marco make if he makes 6 breadsticks?

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

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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.