Identifying operations used to create equivalent systems of equations I need the last bit which is transform system B into system C

? • B1 = C1
? • B2 =C2
? • B1 + B2 = C2
? • B2 + B1 = C1

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.

answer: 230 miles ( vote ! )

step-by-step explanation:

180.39 minus 17.99 equals 162.4

then divide 162.4 by .80 to get 230

is this part of a question or something