If 30 lb of rice and 20 lb of potatoes cost $18.20, and 20 lb of rice and 12 lb of potatoes cost $11.52, how much will 10 lb of rice and 50 lb of potatoes cost? let x be the cost of 1 lb of rice and y be the cost of 1 lb of potatoes. set up two linear equations from the given information using x and y as the variables.

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?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Explain how you divide powers with like bases. discuss why the bases have to be the same. how are these rules similar to the rules for multiplying powers with like bases.