1.what system of measurement is most commonly used in the united states?

your answer is the metric system

We use the U.S. Customary unit

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

⭐⭐

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1