Question

compound inequality
The time a cake must bake is between 25 minutes and 30 minutes, inclusive.

Answer 1

if time in minute=t then
t > 25 or 25<t
t<30
Combining,
25<t<30

Answer 2

25 ≤ x ≤ 30

Answer 3

All real numbers that are less than - 3 or greater than or equal to 5

Answer 4

^^^^^^^?

Answer 5

x<-3 or x ≥5