The cafeteria manager took a survey of the third grade students and found that 83 of 127 students said they did not want hot dogs on wednesdays. there are 900 students at the school. what is a good prediction of the number of students who do not want hot dogs on wednesday?
a 288
b 388
c 488
d 588
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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?