-48 is the answer to the question
mean = Summation of Data/Number of Data Added
mean = [(-54)+(-32)+(-70)+(-25)+(-65)+(-42)] / 6
mean = -288 / 6
mean = -48
The answer is 6x+7x there is no answer without the value of c
A. is D=C+26
B is no
C. is <span>because in each age difference, it is a 26 year age difference. SO you would add 26 to 18, which would give you 44 year old. </span>
33 +4x = 513
4x = 480 (x = 480/4: x = 120)
Answer
Step 2 Divide each side by 4