Question

PZLZ help with number 1

Answer 1

Well, this is what the problem tells you:
5% of c = 61
c= the total number of cans in the grocery store
so then you can do the following:

  5        61
------ = ------  <----------------- here you do cross products (100*61=5c)
100        c

6100=5c  <------------ you do inverse operations

6100/5=5c/5
c=1220

To check your answer you can find 5% of 1220
   5        x
------ = -----         x=61
100     1220

Hope this helps :)

Answer 2

1.15 is the correct answer ok