Ten students compared the amount (in dollars) they spent on books each week. the box plot shows the results. the median amount they spent each week is . the difference of the first and third quartiles of the data set is .

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

most likely linear (proportionate)

step-by-step explanation:

as time increases heart rate increases

the answer to that one is b