Choose all of the expressions that are equivalent to 2 1/2 divide by 1 2/6
a. 5/2 x 6/8
b. 2/5 x 6/8
c.1 2/6 divided by 2 1/2
d.5/2 divided by 8/6

D

Step-by-step explanation:

I got it right UwU

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°