Answer:
Step-by-step explanation:
the mean would be 40+3= 43
the standard deviation wouldn't change
mean= 43
standard deviation= 5
B
sum means addition so n plus 9 would give you the sum of the both
D.(5,1),(-5,4),(2,1),(5,2)
4.75 to 7.5
just look at it or use a pencil to draw lines to proportion
Step-by-step explanation: see attachment below