Its $800 because to find interest u can use the formula I=PRT p is principal which is 500 times r which is rate-15/100(=15%) times 4
so the interest is 500×15/100×4=300
then u add 300 to 500 because the interest adds more money to the loan
we know that 100 pennies = 1 dollar and, 10 dimes = 1 dollar so the ratio would be;
100:10 or 100/10
and in simplest form: 100:10 = 10:1 and 100/10 = 10
C
I believe is the right one
Answer:
put any number between 31 and 20 no higher or lower
The number of viruses was 4000 times greater than number of protozoa.
Step-by-step explanation:
Given,
Number of protozoa = 
Number of viruses = 
Let,
x be the number of times number of viruses is greater than number of protozoa.
Number of viruses = Number of time * Number of protozoa

Dividing both sides by 

The number of viruses was 4000 times greater than number of protozoa.
Keywords: division, scientific notation
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