Find the missing angle measure for the triangle.
PLS HELP

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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?

Factor the polynomial expression x6 – x3 – 20