How many 2.5 inch by 6 inch tiles will fit in a back splash that is 2.5 feet tall and 8 feet long?

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?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.