Robbie returned an acoustic guitar that cost $245.75. he bought a bass guitar that cost $368.45. which statement is true?

brainliest gets 20 points

a. the sum 245.75 + (–368.45) = –122.70 means that robbie still owes $122.70 for the bass guitar.

b. the sum 245.75 + (–368.45) = –122.70 means that robbie will receive a refund of $122.70.

c. the sum –245.75 + 368.45 = 122.70 means that robbie still owes $122.70 for the bass guitar.

d. the sum –245.75 + 368.45 = 122.70 means that robbie will receive a refund of $122.70.

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?