In microsoft excel, you have data to enter in cell c3. you need a function that looks at c3 and says that if c3 is empty, then display nothing. otherwise, take the data in c3 and multiply it by 4. what formula would you write to achieve this?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Icould really use some with this question.

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