The following triangles are similar. state the postulate or theorem that proves they are similar along with the correct scale factor. the diagram is not to scale.
a. sss~; 3: 4
b. sas~; 1: 3
c. sss~; 1: 3
d. sas~; 3: 4

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