Students are knitting scarves for a fund-raiser. Elaine
can knit 4 scarves in 20 days. Mario can knit 2 more
scarves than Elaine can in 40 days. What is the
difference in the time it takes each of them to
knit a scarf? Explain your answers.

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