Can someone help please!! i’ll give brainliest

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

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.