Answer:
21/F=M
Step-by-step explanation:
3 minutes per face so divide time and faces to get the time.
F=7 M=3
Answer:
-30(-8)
Step-by-step explanation:
A negative times a negative always equals a positive.
The first option is

The second option is

So, neither of them is equivalent to 
Answer:
1 3/40
Step-by-step explanation:
1 1/4 +1 1/5 +7/8= 3 13/40
3/4 .3= 2 1/4
3 13/40 - 2 1/4