When it hatches from its egg, the shell of certain crab is 1cm across. when fully grown the shell is approximately 10cm across. each new shell is one-third bigger than the previous one. how many shell does a fully grown carb have during its life?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

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?