Question

This one is really confusing for me.

Can someone please help me with this- please?

Answer 1

1) The temperature after h hours is -14 degrees.

2) -4h = -14, so h = 3.5 hours

3) The temperature after h hours is -14 degrees or colder.

4) -4h ≤ -14, so h ≥ 3.5 hours.