Write an inequality to represent 8 out of 20

Question

Kimberly is selling popcorn for a fundraiser at school. Each student needs to sell a minimum of 20 buckes of popcorn. Kimberly has sold 8 buckets so far.

  Part A

   Write an inequality to represent the number of buckets, b, Kimberly still needs to sell

Answer 1

Kimberly needs to sell at least 20 buckets.  That would be like

b >= 20

But Kimberly already sold 8 buckets so she still needs to sell a minimum of 20 - 8 = 12 buckets.  That would be like

b >= 12