David drove 168 miles on 7 gallons of gasoline. which of the following equations can be used to find how far can he can travel on a full tank of 16 gallons?

The triangles are similar. what is the value of x? show your work.

Plz hurry evaluate the expression a+b where a=8 and b=19

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.