Less than 100 students want to start at 9:00 am is it a random sampling or a population inferences

Population inferences.   Step-by-step explanation:

A

let the 2 numbers be x and y , then

x + y = - 5 ( sum of numbers )

x - y = - 17 ( difference of 2 numbers )

add the 2 equations term by term to eliminate y

2x = - 22 ( divide both sides by 2 )

x = - 11

substitute x = - 11 into x + y = -5 and solve for y

- 11 + y = - 5 ( add 11 to both sides )

y = - 5 + 11 = 6

The 2 numbers are - 11 and 6 → A