Có 4 nữ và 5 nam. Hỏi có bao nhiêu cách lập một tổ gồm 3 người nam nữ tùy ý

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10