200% of d is 11 what is D

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Find an equation for the linear function which has slope -10 and x-intercept -7

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