Answer:
I think the answer is 5
BC=5
Step-by-step explanation:
<em>10x + 50 =1 +5</em>
<em>10x=6-50</em>
<em>10x=-44</em>
<em>x=-4.4</em>
B
The pattern is to add 4 each time. So 17+4 is 21, 21+4 is 25, and 25+4 is 29
D