Which problem can be solved using this inequality? x + 5 ≤ 20 a) beth is purchasing school supplies. she knows that the price for her pencil case is $5. she only has $20 to spend. how much money will she have left after buying the pencil case? b) beth is purchasing school supplies. she knows that the price for her pencil case is $5. she only has $20 to spend. what is the most amount of money she can spend on the remaining supplies? c) beth is purchasing school supplies. she knows that the price for her pencil case is less than $5. she only has $20 to spend. how much money will she have left to spend after buying the pencil case? d) beth is purchasing school supplies. she knows that the price for her pencil case is $5 more than the cost of a book bag. she only has $20 to spend. does beth have enough money to buy the pencil case and book bag?