I’m gonna say 172 if that’s not right I’m so sorry..
Answer: A
Steps:
12(8+x)=126
96+ 8x=126
-96 -96
8x= 30
x=3.75
2(3) + 3(4) + 4(16) + 5(22)
Multiply
6+12+64+110
Add
192
Divide by the total amount of testers
192/((3+4+16+22))
192/45
Divide
About 4.22
Because all the scores are whole numbers, the average score is a 4
I hope this Helps!
4.
A. 2:12(simplified 1:6)
B. 2:8 (simplified 1:4)
5.
3:12 (simplified 1:4)
I’m pretty sure this is right but I did my best lol sorry