It cost 17.50 to get into the fair and then cost $8.75 for every ride. I go on . I spent a total of $131.25. Write an equation and solve it to find the number or rides I went on .

The system of equations graphed below has how many solutions?

Find the solutions for a triangle with a =16, c =12, and b = 63º

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?