Final answer:
b. Jeff is not correct. There are not 215 different ways to choose one shrub and one rose tree.
Step-by-step explanation:
Jeff could be correct. To find the number of ways to choose one shrub and one rose tree, we can multiply the number of options for each. There are 17 types of shrubs and some number of rose trees. Let's assume there are x rose trees. The total number of ways to choose one shrub and one rose tree would be 17*x.
Therefore, if 17*x = 215, then Jeff is correct. We can solve for x by dividing both sides of the equation by 17. 17*x/17 = 215/17, which simplifies to x = 215/17 = 12.65.
Since we can't have a fraction of a rose tree, Jeff is not correct. Therefore, the answer is B) No.