How many miles will she bike in 1/2 hour?
1 answer:
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Answer:
there are 8 prime numbers before 20
Step-by-step explanation:
forty percent of 20 is:
40% × 20=
×20= 8
so the number of whole prime numbers before 20 are 8.
They are:
2,3,5,7,11,13,17,19.