Answer:
225. 7 lb
Step-by-step explanation:
615
1416
let Cedric's age be c
tyshon= 3c-3
3c-3 +c =3c+c-3 = 4c-3
4c-3=57
4c=60
c=15
tyshon=15×3-3 = 42
y=3/5x+3
y=1/2x+11.5
neither