please explain the answer

2. Assume Intervale Railway is considering hiring a reservations agency to han dle senger reservations. The agency would charge a flat fee of $13,000 per mon $3 per passenger reservation. What is the total reservation cost if 200,000 take the trip next month? a. $613,000 Pas- plus b. $3.07 c. $600,000 d. $13,000 3. If Intervale Railway's fixed costs total $90,000 per month, the variable cost per pas- senger is $45, and tickets sell for $75, what is the contribution margin per unit and contribution margin ratio? a. $45 per passenger; 60% b. $3 c. $30 per passenger, 40% d, $45 per passenger, 40% 0 per passenger, 60% 4. If Intervale Railway's fixed costs total $90,000 per month, the variable cost per pas- senger is $45, and tickets sell for $75, what is the breakeven point in units? a. 1,200 passengers b. 2,000 passengers c. 225,000 passengers d. 3,000 passengers