Which relation is function a. {(1, 2); (2, 3); (3, 4); (1, 5)} b. {(1, 2); (1, 3); (1, 4); (1, 5)} c. {(1, 2); (2, 3); (3, 4); (2, 5)} d. {(1, 2); (2, 2); (3, 2); (4, 2)}

If chord ab is congruent to chord cd, then what must be true about ef and eg?

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?

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine, t, the number lf tokens jason bought