She has 30 worms and 50 ants
a-20=w ----> a=w+20
a+w=80------> w+20+w=80 ------> 2w + 20 = 80 -----> 2w = 60
w = 30
a+30=80
a=50
Answer:
:)))))))))))))))))) boring
Each sheet of wallpaper can get 12/(1/3)=36 pieces, since there're 3 in total, we have 36*3 = 108 pieces
Answer:
there is no choices but i can tell you some
as a decimal 0.429
6/14
12/28
multiply it by two every time
Step-by-step explanation: