Julie bought 4& 1/4 pounds of spinach for $5.10. using the unit rate, how much would 3& 1/2 pounds of spinach cost ? show work. answer i don’t !

$4.20

Step-by-step explanation:

Easy.. Do a proportion

1) 4.25           3.5

    =    

  $5.10           x

2) cross multiply

   4.25x = (5.10) (3.5)

3) Simplify

   4.25x = 17.85

4) Divide 17.85 by 4.25

5) $4.20

6) Thank me :D

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.