Answer:
4
Step-by-step explanation:
Order of operations multiplication then subtraction so 5*6=30
34-30=4
4a + 3b - a - 5b
First, gather the like terms.
Second, subtract 4a - a to get 3a.
Third, subtract 3b - 5b to get 2b.

Answer:
3a - 2b
Answer:
10 (?)
Step-by-step explanation:
6 during lunch + 4 during dinner would be 10. Not sure why you said lunch twice.
Answer:
D
the first one obviously isnt random
the second one is selective then random
the third one is also selective
the fourth one is random