Answer:
x=-7
Step-by-step explanation:

Answer:
2
Step-by-step explanation:
4(f+2)=16
4f+8=16
4f=8
f=8/4
f=2
Answer:
396.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
30 kg - 4.3 kg = 25.7 kg
25.7 kg - 0.4 kg = 25.3 kg
25.3/2.3 = 11
There are 11 student books in the box.
Answer:
There is no sufficient evidence
Step-by-step explanation:
See attached files