The mean score on a calculus exam was 40 and the standard deviation was 5. The teacher decided to double everyone’s score, and then added 7 points. What are the values of the mean and standard deviation of the distribution of transformed exam scores?

mean = 80 and standard deviation = 5
mean = 80 and standard deviation = 10
mean = 87 and standard deviation = 5
mean = 87 and standard deviation = 10
mean = 87 and standard deviation = 17

15 points ! ~ see if you know the answer to both you!

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e