Question

Which number satisfies the compound inequality?

a < -7.5 and a < 2

Answer 1

A lot of number satisfy these. Any number less than -7.5.
For example -8 satisfies it. -100 satisfies it. -23.7 satisfies it. -235435353. etc...

Answer 2

All of these number are both <-7.5 and <2

Answer 3

one may note that anything less than +2 is by definition also less than -7.5

Answer 4

That is false, jdoe. Anything less than +2 is not necessarily less than -7.5.
For example: 1
1 is less than +2. But it is not less than -7.5