Answer:
270 - 33t.
Explanation:
If you're looking to calculate the profit made from putting together three bikes, you can use the following formula: P = a(90 - 11t), where P represents profit, a represents the number of bikes assembled, and t represents the time taken to assemble one bike. Assuming that each bike takes the same amount of time to assemble, you can simplify the formula to P = 270 - 33t. It's important to note that the profit earned will vary depending on the value of t.