Melissa and Rachel like to make funny hats. Melissa has made 20 zebra-printed hats, and Rachel has made h striped hats. Together they have made a total of 42 hats.

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6

you can use a^2+ b^2=c^2

well what is the rest of your problem?