$27,797 is invested, part at 12% and the rest at 11%. if the interest earned from the amount invested at 12% exceeds the interest earned from the amount invested at 11% by $211.32, how much is invested at each rate? (round to two decimal places if necessary.)

Solve the system of equations. y= 2x y= x^2 - 15

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?

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared