Which of the following equations could you solve by first subtracting four and then dividing by negative two? -4x + 2 = 20 -2x – 4 = 20 -2x + 4 = 20 -4x – 2 = 20

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.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

At a cost of 200, your club bought 175 frisbees to sell at the pep rally. you plan on selling them for $5 each. what is the domain of the function?