1a. A company has expenses that run 15/16 of revenue. One month's profit (the difference between revenue and expenses) was $18,000. Find the revenue

1b. An auto plant produces 3 red sports models for every 7 blue family models. Find the number of red sports models produced if the plant produces 868 blue family models 1C. Robert receives a commission of 6% for selling a $235,000 house. One-half of the commission goes to the broker and one-half of the remainder to another salesperson. Robert gets the rest. find the amount robert gets