Sofia saw a sign that all calculators were 20% of the regular price. She determined that she substituted the price of the calculator she wants (c) to the expression c-0.2c, she could find the sale price of the calculator after the discount Calculator her the discount
What is the expression when written in simplest form?
the sale price of the calculator was $28.00, what was the original price? Justify your solution

Place the following steps in order to complete the square and solve the quadratic equation,

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?

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?