Karen and Bill collect coins. Karen has x coins. Bill has 9 coins fewer than three times the number of coins Karen has. Write and simplify an expression for the total number of coins Karen and Bill have.
please help

Karen has 27 coins.

Step-by-step explanation:

27

Step-by-step explanation:

3 hours of thinking lol

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

i believe that the slope of the line is -5

step-by-step explanation: