Find the GCF and the LCM of each pair of numbers. 21. 36 and 45
22. 30 and 75
23. 78 and 104
24. 15 and 60
25. 32 and 45
26. 37 and 12

idk bring the function back   im not smart

step-by-step explanation:

i dont know nkw

step-by-step explanation:

kenffledkedncklzkdfeserw

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.  

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64