Answer:
k = 2
Step-by-step explanation:
Use a graphing calculator
If two triangles are similar, the correspondant sides are in proportion. So, the proportion is

Answer:

Step-by-step explanation:
Let the number be x
Given

Required
Find x

Collect Like Terms

Take LCM


Multiply both sides by 6


Divide both sides by -3


Hence, the number is 
Answer:
10 muffins
Step-by-step explanation:
10 is 25% (one-fourth) of 40