Final answer:
The mathematics question involves creating a linear equation to represent Dexter's total cost for renting a bicycle. The equation would resemble y = a + bx, with 'a' being the flat fee, 'b' the hourly rate, and 'x' the number of hours.
Step-by-step explanation:
The question involves the creation of a linear equation to represent a real-world scenario in the context of business or personal finance. This is a mathematics question, specifically dealing with the principles of algebra. In the example provided, Dexter's total cost for renting a bicycle would be represented by a similar equation to those provided in other examples, such as Ethan repairs household appliances or Aaron's Word Processing Service. If the rental cost is a flat fee plus a fee per hour, the equation would take a form similar to y = a + bx, where y represents the total cost, a is the flat fee, and b is the cost per hour multiplied by the number of hours x. The y-intercept is the point where the line crosses the y-axis. This represents the initial cost irrespective of usage or time. The slope of the line represents the rate of change of the cost with respect to the number of hours the bike is rented.