Add. (7s+5)+(2s+9) help please

9s+ 14

Step-by-step explanation:

(7s+5)+(5+9)

(7s+2s) +(5+9)

(9s)+(14)

Start by moving your numbers around so your like terms are by each other.

Then combine you like term so numbers with letters with numbers and letters the plain numbers and plain numbers.

once you do that your equation is simplify as far as possible

∠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°