sum of two numbers is 50 three times the first number minus three times the second number is 30 whats the number

Eis the midpoint of line segment ac and bd also line segment ed is congruent to ec prove that line segment ae is congruent to line segment be

Which of the following describes the symmetry of the graph of y = x3?

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?