Which fraction is equivalent to -7/8. 8/-7, 7/-8, -7/-8, 8/7

What is not true about kl and mn? what is mn? (show )

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.