On a coordinate plane, rhombus Q R S T has points (8, 20), (14, 12), (8, 4), (2, 12). How can you find the perimeter of the rhombus?
1) Find One-half(QS)(RT).
2) Find One-half(QT)(TS).
3) Use the distance formula to find QT, then multiply by 4.
4) Use the distance formula to find QT and QR, add the distances, then multiply by 4.

Explanation:
3) Use the distance formula to find QT and QR, add the distances, then multiply by 4.

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.