Steve made 9 3/6 cups of pancake batter on a weekend camping trip. he used 3 4/6 cups of batter for breakfast on saturday. write each mixed number as a fraction greater than one.

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

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.