The answer would be 90 because it takes 60 days to become a half-life so the the half of 720 is 360 the 180 then 90
Answer:
Step-by-step explanation:
Start from left one first
12x & 70
Area as Sum= 12x+70
Area as Product = 12(x+5)
Right side
X & 4
Area as Sum= 5X+20
Area as Product = 5(X+4)
Answer:
False
Step-by-step explanation:
4 = 10 - 3²
4 = 10 - 9
4 = 1