Answer:
d = 
Step-by-step explanation:

47 is the answer Since two opposites add up to zero, remove them from the expression, and then you just add up the answers
To convert a mixed fraction into an improper fraction, we must follow some steps.
First, we take the whole part and multiply it by the denominator of the fraction.
In this case, we take 2 and multiply it by 8.
Now we add the numerator:
16+3=19
The denominator stays the same:

Hope it helps! :)
Answer:
17,500,000 cm.
Step-by-step explanation:
3.5cm(5,000,000 years) = 17,500,000
Answer:
1/10
Step-by-step explanation:
P(blue picked) = 8/20 = 2/5
P(green picked with replacement) = 5/20 = 1/4
P(blue, then green) = (2/5)(1/4) = 1/10