Answer:
B, C, E
Step-by-step explanation:
you need to find lines whose slope is the negative reciprocal of the slope from the line you are solving for. in this case, all lines with the slope -1/2 are Perpendicular to a line with the slope of 2
i believe your answer will be 0.04 or 4/100
OR if you need an equivalent expression, that would be 81/2187
y = 5
z = 55
90 - 35 = 55
7y = 35
y= 5