Please don't just tell me the answer but how you got the answer. Thank you

1.)

Month Miles Total Cost

January 80,000 $270,000

February 50,000 200,000

March 70,000 240,000

April 90,000 320,000

Q1) In applying the high-low method, which months are relevant?

Q2) In applying the high-low method, what is the unit variable cost?

Q3) In applying the high-low method, what is the fixed cost?

2.) The following information was taken from Indriks Companys cash budget for the month of July:

Beginning cash balance $150,000

Cash receipts 95,000

Cash disbursements 170,000

If the company has a policy of maintaining a minimum end of the month cash balance of $125,000, the amount the company would have to borrow is