Answer:
46.22
Step-by-step explanation:
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
Answer:
4
Step-by-step explanation:
It's a opposite of -4 so the opposite would be 4
Similarly to the last graph that decreased, this one increases, so you have to see where the line points upwards into the right top corner
CD