an antique clock bought for £450 depreciates in value by 0.5% during the first year of ownership. The value then increased the following year by 120%. the overall percentage increase in value was ?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

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?