Question

Which conjunction or disjunction is equivalent to the open sentence |a – 9| ≤ 4.

Answer 1

A.
a – 9 ≥ 4 and a – 9 ≤ –4
B.
a – 9 ≤ 4 or a – 9 ≥ –4
C.
a – 9 ≤ 4 and a – 9 ≤ –4
D.
a – 9 ≤ 4 and a – 9 ≥ –4

Answer 2

C.

Answer 3

this means the distance from a to 9 is less then 4

Answer 4

So ash is right?