1. Babies cost a lot of money! Data is collected on how much parents spend per baby each month in Massachusetts and New Hampshire. The data are given below. Assume a
population standard deviation of $30 for both states. At a -0.05. is there a significant
difference in the amount of money spent per baby?
MA
NH
My = $585
My = $261
n = 18
n2 = 16

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

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?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no