What is the measure of each angle

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Atransformation was performed on rectangle c as shown in the graph. what type of transformation was performed? does that transformation result in congruent shapes? you people

Three problems for 50 ! 1- -3t=99 2- 1/6k=-11 3- 4 1/2 +q=9 1/2 show work thx s !