I need help in question 2

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

Math each whole number with a rational,exponential expression

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²