Well add them all up. : 10+15+8+7=40. There are 8 white balls out of 40. 8/40. Find the GCF of them both and simplify them.
8=8 so 8/8 = 1
40=8 so 40/8 = 5 so 1/5 is your answer.
B. is your answer.
Hoped I helped!
(1/3)/(5)= 1/3 * 1/5 = 1/15 of a chocolate bar each friend gets
Y = 3x - 7
just find the slope then use two point and point slope form to solve for slope intercept form
