A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer. Which survey methods are likely to be biased?

Select each correct answer.

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z