this is proportions Plz help

1. k/3=3/9
2. 1/k=4/20
3. 20/5=m/25
4. 4/7=12/g
5. 4/5=72/g
6. 10/25=r/20
7. 12/8=15/k
8. 9/12=15/n
9. 6/n=21/28
10. b/16=17.5/20

5 answers

cross-multiply in each case
I will do #4 , you do the others in the same way

4/7=12/g , the numerator of first times the denominator of the 2nd = the numerator of the 2nd times the denominator of the first
4g = 7*12
4g = 84
g = 21

thanks for no help :(

a 1
b 2
c 3
a 4
b 5
c 6
d 7
b 8
c 9
b 10 your welcome and im right so yeah no trying to say no you now how I use the coulter lol peces out

3 of you answers are wrong

100% is correct thank you