Jen bought 5 CDS for $57.50. What is the unit price?

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.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

In the diagram below, abc is congruent to dec what is the value of x