Answer:
-7
Step-by-step explanation:
4 + (−3 − 8)
PEMDAS
Parentheses first
4 + (-11)
Add and subtract next
-7
Answer:
B
Step-by-step explanation:
The chances of the first student walking to school is 7/30.
Without replacement, there are 29 students left. Hence the chance of the second student walking to school is 6/29 of the original 7/30 chance.

4.5 • 10-5 = 40
2.4 • 10-2 = 22
There are 6/10 left over. 6/10 reduces to 3/5.
Answer:
1408 multiply 64 by 22 for a total of 1,408