Answer:
week one had more boys
Step-by-step explanation:
3 x 5 = 15, 2 x 5 = 10
5 x 3= 15, 3 x 3 = 9
Answer:
1.) -5
2.) -4
Step-by-step explanation:
For number 1, you sub in -2 for x.
2 multiplied by -2 is -4, minus 1 = -5.
For the second one, sub in 5 for x.
-5 + 1 = -4.
Answer:

Step-by-step explanation:
The half life is the amount of time it takes a substance to decay to half of its original amount.
Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.
So, the fraction that will be left after 1000 years is 
Answer:
12
Step-by-step explanation:
Combine like terms *-12x and 12x*
-12x and 12x cancel each other out, therefore your x is gone.
That being said, your answer is 12.