Answer:
Sorry i dont know but need the points
Step-by-step explanation:
Answer:
The average goes up by 0.6.
Step-by-step explanation:
The average of the original data set, 6,6,7,8,9 is 7.2. The average of the new data set with 3 more cookbooks 6,7,8,9,9 is 7.8. Therefore it increases by 0.6, hope that makes sense :)
I got 18x+9=y
--------- (divide)
9
if you want I can show you how I got that and if its wrong im sorry but that's the best simplified answer I got for y.