Answer:
Step-by-step explanation:
your welcome
Answer:
3.5 cm
Step-by-step explanation:
2.5 is half of 5 so you divide 7 by 2 and you get 3.5
Answer:
50
Step-by-step explanation:
You add the 25 + another 25 and that adds up to 50. Hope this helps!
Answer:
1.25kg
Step-by-step explanation:
useing the problem the half life equation will be:
f(x)=5(0.5)^(x/140)
x is amount of days
so plugging in 280 for x will get 1.25kg