Answer:
x+(x+4)=52
I think this is it
1/12=x/100
Step-by-step explanation:
1/2=x/100
1*100=100
100 dived by 12 =
8
2
Step-by-step explanantion:
You sustitute 20 for s to get 20 = d + 18, subtract 18 from both sides and you get d = 2.
B the mean increases by 6.8
Liters i guess. idk. im not rlly sure