Answer:
x=-1
Step-by-step explanation:
The work is in the picture
Answer: I got -8/9. Hope this helps in any way shape of form.
1+7=8
I hope it helps
carryonlearning
46.22
Class A total= 23 x 13= 299
Clas B total= 57 x 28= 1596
total score= 299 + 1596 = 1895
total mean= 1895 ÷ (13+28) = 1895 ÷ 41
= 46.22
