5 i think because you cant get the exact amount he has
Answer:
X = 3
Step-by-step explanation:
3^3 = 9, 9^3 = 27.
Answer:
15 possible combinations
Step-by-step explanation:
Given


Required
Determine the possible number of combinations
The question emphasizes on "selection" which means "combination".
So; To answer this question, we apply the following combination formula:

In this case:


The formula becomes:






<em>Hence, there are 15 possible combinations</em>
The 3rd selection is appropriate.
.. 5b +1 = a = 3b +5
by the transitive property of equality,
.. 5b +1 = 3b +5