V = 130 mL
m = 0.250 lb = 113.398 g
Density: d = m/V
d = 113.398 g / 130 mL
d = 0.8722923 g / mL
You need to solve :
8*x=10 for x
Major arc is the remaining arc of the circle, so that
major arc+minor arc = 360 degrees.
For this particular problem,
Major arc = 360 - minor arc = 360-97=263 °
1/4 = y/12
12/4 = y
y = 3
Answer: y = 3
Check work
1/4 = y/12
1/4 = 3/12
Correct!