A one year membership at the club costs $10. You pay an additional $1.25 each day you go. Last year you spent a total of $45. How many days did you go?

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