Find the measure of the arc indicated by a "?."

A) 55o

B) 50o

C) 65o

D) 45o

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0