Rey buys a skateboard for $78.96 and a helmet for $34.75 on tax-free day at sports store. the store check gives rey a discount of $17.50 for both items. rey gives the clerk $150. how much the change should be?

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?

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)

What is the inverse of the function fx = 2x-10