Answer:
Mike had 72 stamps
Ken had 120 stamps
Step-by-step explanation:
Given




Required
Find K and M
Make K the subject in: 

Substitute
in 
![\frac{1}{5} * [3 * ( M - 24) - 24] = \frac{1}{3} * M](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%20%2A%20%5B3%20%2A%20%28%20M%20-%2024%29%20-%2024%5D%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%2A%20M)
Open brackets
![\frac{1}{5} * [3M - 72 - 24] = \frac{1}{3} * M](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%20%2A%20%5B3M%20-%2072%20-%2024%5D%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%2A%20M)
![\frac{1}{5} * [3M -96] = \frac{1}{3} * M](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%20%2A%20%5B3M%20-96%5D%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%2A%20M)
Multiply both sides by 15
![3* [3M -96] = 5 * M](https://tex.z-dn.net/?f=3%2A%20%5B3M%20-96%5D%20%3D%205%20%2A%20M)

Collect like terms


Divide both sides by 4

Substitute
in 



Answer:
1.5 billion
Step-by-step explanation:
Answer:
The bottom one
Step-by-step explanation:
its vertex is located at the origin and one ray is on the positive x-axis
C. Zero slope. If it's going straight up and down, there is no slope.
Answer:
183.75
Step-by-step explanation:
157.50
÷30
=5.25
×35
=183.75