Al just got rid of 40 of his dad's old records. He sold each classical record for $5 and each jazz record for $2. The rest of the records could not be sold, so he donated them to a thrift shop. Al knows that he sold fewer than 10 jazz records and that he earned more than $100.
a. Let x represent the number of classical records sold, and let y represent the number of jazz records sold. Write an inequality expressing that Al earned more than $100.
b. Write an inequality expressing that he sold fewer than 10 jazz records.
c. Write an inequality expressing that the total number of records sold was no more than 40.