25% discount of $120
=100*0.25
=$25
Answer:
arc QS = 95°
Step-by-step explanation:
the inscribed angle QSR is half the measure of its intercepted arc RQ , then
arc RQ = 2 × 95° = 190°
the sum of the arcs in a circle = 360° , then
arc QS = 360° - arc SR - arc RQ = 360° - 75° - 190° = 95°
Know that you will have to deal with a lot of shapes, formulas, and calculations that you have to memorize