(plz me) chocolates cost $0.20 per ounce. samantha spent $6.80 on chocolates. if n represents the number of ounces she bought, which of the following equations is true? a. $6.80 + n = $0.20 b.$6.80*$0.20=n c. $6.80 ÷ $0.20 = n d.$6.80*n=$0.20

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

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

How do i i solve this equation? -18 = x/3 + 3