Answer:
D. the mean would go up by 0.9
Step-by-step explanation:
Add the first set together without the 17, you get 7.1
Add the second set together (so include the 17 this time) you will get 8
meaning the 7.1 went to 8 which is going uo by 0.9
B.
(11x+1)(2x+1)
Answer: n + d = 30
0.05n + 0.10d = 2.20
^^ ur system of equations
=1
