Can someone answer . math question, screen shot attached

If g(x) is an odd function, which function must be an even function?

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

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates