Answer:
54
Step-by-step explanation:
3x3= 9x6= 54
t=100
p=3000
t 1/2 = 20
Try inserting the numbers in the half-life formula.
a believe it is c..........
There is no solution
4x - 2y = 5 --> 4x - 2(2x + 10) = 5
4x - 4x - 20 = 5
4x - 4x -25 = 0
Final answer is -25 = 0 and so therefor it is no solution
