The height above the ground, h, in feet, of a bullet fired upward is given by the formula h = −162 + 80 + 224. Find the number of seconds after being fired the bullet hits the ground.

Factor the polynomial 8y^2 - 72 btw "^" means exponent

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

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.