If you have 3/5 marbles and you got 4/3more marbles then all you have to do is:3/5 x 3/3 and get 9/15.For 4/3 you multiply 4/3 x 5/5 and get 20/15.You simplify this and get 1 5/15.Now all you do is add them and get 1 14/15. Hope this helped you :-).
D . All three have same volume
Answer:
it is b
Step-by-step explanation:
you need to substitute.... then do: 160.4(mean)+2(x)*27(z)= 214.4lb