Answer:
The expression represents the profit is 33x + 390 ⇒ D
Step-by-step explanation:
Let us solve the question
∵ Profit = revenue - cost
∵ The revenue, in dollars, of a company that makes skateboards can be
modeled by the polynomial 2x³ + 30x - 130
∴ Revenue = 2x³ + 30x - 130
∵ The cost, in dollars, of producing the skateboards can be modeled by
the polynomial 2x³ - 3x - 520
∴ Cost = 2x³ - 3x - 520
→ Use the rule above to find the profit
∵ Profit = 2x³ + 30x - 130 - (2x³ - 3x - 520)
→ Remember (-)(-) = (+)
∴ Profite = 2x³ + 30x - 130 - 2x³ + 3x + 520
→ Add the like terms
∵ Profit = (2x³ - 2x³) + (30x + 3x) + (-130 + 520)
∴ Profite = 0 + 33x + 390
∴ Profit = 33x + 390
∴ The expression represents the profit is 33x + 390
