The number of blood tests performed and the related costs over the last nine months in Brentline Hospital are given below:

MonthBlood Tests PerformedBlood Test CostsJanuary$4,335$$$28,382$February$4,850$$$30,370$March$3,995$$$25,929$April$3,390$$$22,542$May$3,495$$$23,606$June$2,700$$$19,190$July$3,255$$$21,534$August$4,185$$$26,850$September$4,550$$$29,330$

Required:

Using the high$$low method, estimate the cost formula for blood tests.

Note: Round cost per unit answer to $2$ decimal places.

Using the cost formula you derived above, what blood test costs would you expect to be incurred during a month in which $3,805$ blood tests are performed?

Note: Round your intermediate calculations answer to $2$ decimal places.