How to change 12 meters to feet ?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Multiplying fractions by whole number 5 x 1/3=?