Please need help at this exercise, French, thanks

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

Write the equation in logarithmic form m^x=n

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red