7: jim, kelly, and samantha sold fundraiser tickets for the band. jim sold 10 more tickets than samantha. kelly sold 15 fewer tickets than jim. they sold a total of 65 tickets. how many tickets did each band member sell

Step-by-step explanation:

S = J - 10

K = J - 15

S + J + K = 65

(J - 10) + (J - 15) + J  = 65

3J - 10 - 15 = 65

3J - 25 = 65

3J = 90

Jim = 30

30 - 10 = 20

Samantha = 20

30 - 15 = 15

Kelly = 15

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)