Why does Macbeth fear Banquo and feel threatened by his “being" ? What is suggested
about Macbeth's character through his action of hiring murderers to carry out his plan?

Explanation:

Macbeth fears Banquo because the three witches foretold that Banquo would have a line of kings. And Macbeth know tht will come true as he has no lineage nor any children to take the crown

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.