Answer:
Step-by-step explanation:
First make all the fractions into decimals
1/5 = 0.2
2/5 = 0.4
As we know non terminating numbers are irrational so make up any non terminating number between 0.2 and 0.4
Like 0.3454672438700894......
Or 0.27435847454706.....
Options are infinite
Answer:

Step-by-step explanation:
Given

Required
Rationalize

To do this, we simply multiply by 

This gives:



Hence:

Answer:
y=3x
Step-by-step explanation:
im prob wrong but try milk first then cereal
Answer:
28 minus k is greater than or equal to 7 times the product of k minus 4
7 ≥k
Step-by-step explanation:
28-k ≥7 ( k-4)
Distribute
28-k ≥7k-28
Add k to each side
28-k +k ≥7k+k-28
28 ≥8k-28
Add 28 to each side
28+28 ≥8k-28+28
56 ≥8k
Divide by 8
56/8 ≥8k/8
7 ≥k