Answer asap-right answer gets brainlist what is the measure of qs?

The angle that subtends a chord is half the measure of the arc, so we have an arc QS of 2(84)=168 degrees.

168 degrees

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

-4

step-by-step explanation: