Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the \$j fare among the 3 of them. Angela also paid a \$5 tip.
How much did Angela pay in total?
Write your answer as an expression.

∠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°