Jolly has 5 candles and 2 knifes for the cake, what the ratio is to knifes to candles

Which representation has a constant of variation of -2.5

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

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?