The annual National No Spying Day is celebrated at KAOS headquarters this year. There are 12 Control agents and 14 KAOS agents attending. How many ways can we choose a team of 9 agents if 3 team members need to be from Control and 6 from KAOS?
How many ways can we choose a team of 9 agents if at least 1 team member needs to be from Control?

Total cost = $ 4.55

Step-by-step explanation:

2(8a + 5b) -(2a + 3b)

Part A: Simplify the expression shown above

Exapanding the brackets;

16a + 10b - 2a - 3b

Collecting like terms;

16a - 2a + 10b - 3b

14a + 7b

Part B: If a represents apples that cost $0.25 each and b represents bananas that cost SO. 15 each, what is the total cost based on the expression above?

a = 0.25

b = 0.15

14a + 7b

Inserting the values into the equation;

14 (0.25) + 7(0.15)

Total cost = $ 4.55