Answer:
How are you asking questions but no pictures.
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Simply subtract the smaller number from the bigger number, and divide by 2. Or add the two numbers together and divide by 2.
Let S=score on the second exam, then
(67+S+(S+7))/3=84
cross multiply
2S+74=252
2S=178
S=89
So second exam: 89
third exam=89+7=96
Check: (67+89+96)/3=84 ok.
Answer:
-20
Step-by-step explanation:
48 divided by -3 is -16 but you round up since its high enough and it goes to -20
