i dont know, my personal thoughts is that I will not do it:)
Answer:
4960?
Step-by-step explanation:
31 times 160 = 4960
They both weigh the same........ 1lb = 16 oz :D
First we will find out the values of a
a/4=b/7
a=4b/7
Now
(a-b)/b
{4b/7-b}/b
(4b-7b)/7b
-3b/7b
-3/7
