Answer:
First one
Step-by-step explanation:
The first one
y = 6.6 (1/2 ) ^n where n = the number of half lives
42 days/ 14 days/halflife = 3 halflives
Answer:
16.9
Step-by-step explanation:
Answer:
6x-3y+2
Step-by-step explanation:
I AM BIG BRAIN
Step-by-step explanation:
72/64=x/8
=> x = (72×8)/64
=> x = 9.
hope this helps you.