Do the ratios 12/6 and 2/1 form a proportion?

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

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