Your club is ordering enrollment gifts engraved with your club logo. Keychains cost $5 each. Wristbands cost $2 each. You have a budget of $150 for the gifts. The equation 5x+2y=$150 models the total cost, where x is the number of key chains and y is the number of wristbands

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

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?

A+b= 17, ab=70, find the value of |a-b|