Rachel is packing up her room to move to a new city. Together, all the books on her bookshelf weigh 85 pounds. She wants to divide the books among 4 boxes, so that each box will weigh the same amount.
How many pounds of books will be in each box?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.