The equation 2y+53=165 represents the situation “ joel spent $165 on a pair of jeans and two shirts at the same price.” what does y represent? a. amount joel spent on the shirts. b. number of shirts joel bought. c. price of a shirt. d. price of a pair of jeans. macy is 2 years older than camille. twice the sum of their ages is 52. which equation can be used to find camille's age, x? a. 2(x+2)=52 b. 2(2x−2)=52 c. 2(x−2)=52 d. 2(2x+2)=52 which situation can be represented by the equation 2x+10=34? a. ten more than twice a number is 34. b. two more than 10 times of a number is 34. c. the difference of double of a number and 10 is 34. d. julia spends $10 on a movie ticket, $2 for coffee, and $ x to hire a cab. in total, she spends $34.

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: