Kate poses a $20 item at the store she uses a coupon to receive a 15% discount if you pay the 6% sales tax on the item how much did she pay for the item

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)