Answer:
C
Step-by-step explanation:
Using rule of negatives and positives:
The rules for multiplication and division are simple: If both numbers are positive, the result is positive. If both numbers are negative, the result is positive. If one number is positive and the other is negative, the result is negative.
This is why C is the correct statement
This is the process I would use:
Maddy's = 2x 2x+x=15
Meg's = x 3x=15
x=5
Since Maddy's is 2x, multiply the 5 times 2 and you find that Maddy has 10 stickers.
Answer:
The answer is the 2nd one.
Answer:
The amount present in a sample of 401 grams after 25 years is
Step-by-step explanation:
we have
A(t) -----> the amount, in grams, of polonium 210 present in a given sample
t -----> the time in years

we know that
To find out the amount present in a sample of 401 grams after 25 years, substitute the value of t=25 years in the equation and solve for A(t)
For t=25 years
The answer to this is A, 24
4*3*2*1=24