Solve the system with substitution: y=3x-1 and -9x+3y=-3

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

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

Write the equations in logarithmic form 10^3=1,000