B is the correct response to that question.
P(13,2) = 169 Explanation: We need to determine the combinations for left and right shoes, as having a right shoe in blue and a left in red is not the same as a right shoe in red and a left in blue. There are 13 pairs, and she will select one from each pair. Where: n = number of pairs = 13 and r = shoes = 2 (one for each foot). Therefore, P(13,2) = 169.
Explanation:
Part 1: True, the information given about the total costs incurred by the movie studio from last year shows that after the adjustments for the differences in totals
3rd movie cost - 2nd = 132-84 = 48 million
Thus, the variable costs must be at least $47 million but less than $255 million as well.
Part 2: False, the marginal cost for producing the first movie was $45 million, while the studio produced three films during that period.
In conclusion, the variable costs for all three films last year were
45 x 3 = 135 million
