Select the correct answer. David and Gino each have coins with the same total value. David has a mixture of nickels and dimes, and he has 8 more nickels than he has

dimes. Gino only has nickels, and he has 20 more nickels than David.

What is the value of David's coins?

OA

$1.90

OB.

$1.50

Ос.

$1.45

OD

$0.55

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?