You decide to put the pictures of six friends in a row on a bulletin board. In how many ways can you arrange the pictures? (Please tell how you figure it out)

What is the lcm of 16 and 40 ? 24 and 40 ?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

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?