Use the confidence interval to find the estimated margin of error. Then find the sample mean. A store manager reports a confidence interval of (43.5,81.9) when estimating the mean price (in dollars) for the population of textbooks.

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

Me with this one question, and i'll upvote the brainliest answer

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?