9. Select all the equations that are equivalent to the equation. 3x - 4 = 5 A. 3x = 9
B. 3x - 4+4 = 5 + 4
C. x - 4 =2
D. x=9
E. -4 = 5 - 3x

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

The measure of an angle is 117°. what is the measure of a supplementary angle?

The tile along the edge of a triangular community pool needs to be replaced? ?