Using the properties of rational exponents, which expression is equivalent to m2?
A)
m2
B)
m8
C)
m4
D)
m6

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

Can someone answer this question for me

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)