Answer:
800
Step-by-step explanation:
20 x40 =800
x ×y
abcdefghijklmnopqurstuvwxyz
Answer:
Step-by-step explanation:
m∠1>m∠2
Answer:
5 millicuries
Step-by-step explanation:
Half life is 7 days which means it will be at 10 millicuries if we half that again for another 7 days then it will be 5.