Leon has a bag of 4 red balls, 3 green balls and 6 yellow balls. he takes a ball out and replaces it 50 times. out of those 50 trials he pulls out a green ball 12 times. what is the experimental probability of getting a green ball on his next trial?

a) 3: 50

b) 6: 25

c) 2: 25

d) 6: 50

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?