13 Mark a point at an approximate location for V 17 on the number line below. V 17 is between which two decimals to the tenths place?

I need help with 12 and 13 please please please please please please please help

If you answer 2+2 you will get over 80 points

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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