<span>{(c,e),(c,d),(c,b)} is NOT a function since the input c has multiple outputs (e,d,b). So choice B is out
</span><span>{(b,b),(c,d),(d,c),(c,a)} is NOT a function either. The input 'c' corresponds to the output 'd' and 'a' at the same time. So choice C is out too
</span><span>
Choices A and D are the answer. They are functions since any given input corresponds to exactly one output.
</span>
Answer:
42
Step-by-step explanation:
mode is the most common number
X=kevin
<span>y=steve </span>
<span>x+y=26 </span>
<span>x=4+y </span>
(4+y)+y=26
<span>-4 -4 </span>
<span>y+y=22 </span>
2y=22
<span>/2 /2
</span>
<span>y=11 </span>
<span>steve ran 11 miles</span>
