Consider the relation shown in the mapping diagram to the left. Suppose one of the ordered pairs below were added to the relation. Which ordered pair would keep the relation a function? A: (-5,-2)
B: (-2,4)
C: (0,-1)
D: (6,8)

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.