Premise:
"he'd help them out a lot if they were broke down he'd try to go fix their car on the road instead of calling the tow truck so that saved them a lot of money"
Hypothesis: He used to work as a mechanic and was skilled enough to repair the cars.

it is not possible to tell

Premise:
"Oh! Lawrence looked indeterminate. "
Hypothesis: Lawrence appeared confident.

no

Premise:
"Coral World's Yellow Submarine may well be the highlight of a child's holiday, but make sure you know the cost before you suggest it."
Hypothesis: The Coral World's Yellow Submarine attraction is free.
no