At 2 minutes, the heart would beat 140 times.
700/10=70
140/70=2
Number 10 would be C,D,E.
Step-by-step explanation:
x=4kn+4km
x-4kn=4km
divide both sides by 4k
m=x-n
Answer:
4 1/2
Step-by-step explanation:

-25/8 minus 5/2
(You just turn them into improper fractions)