The mean score on a calculus exam was 40 and the standardize deviation was five. The teacher decided to double everyone score and then add seven points. What are the values of the mean and standard deviation of the distribution of transform exam scores

Which statements are true? see picture

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Pleasseee important quick note: enter your answer and show all the steps that you use to solve this problem in the space provided. use the circle graph shown below to answer the question. a pie chart labeled favorite sports to watch is divided into three portions. football represents 42 percent, baseball represents 33 percent, and soccer represents 25 percent. if 210 people said football was their favorite sport to watch, how many people were surveyed?