Answer: 
Work Shown:

Therefore -7 goes in the first box, and
goes in the second box.
Answer:
1, 2, 4, 5, 10, 20
Step-by-step explanation:
they all can go into 20
I would say the answer is B because A would be going to a thousand and you dont wanna do that so i think its a 50% chance its B
Answer:
(a) 4.148 x 10^(12) ways
(b) 5,827,360 ways
Step-by-step explanation:
Number of Demonstrators (D) = 44
Number of Repudiators (R) = 56
(a)
5 senate members must be Repudiators and 5 must be demonstrators, assuming that the order at which they are selected is irrelevant:

(b)
Since there are two different positions, (speaker and vice speaker), order is important in this situation, and the total number of ways to select two senators from each party is:
