Samuel orders four DVDs from an online music store. Each DVD costs $9.45. He has a 25% discount code, and sales tax is 7.5%. Round sales tax amounts to the nearest cent. What is the total cost of his order? The total cost of Samuel's order is $

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212