A friend gave ms. Morris a gift card for a local car wash. The table shows the linear relationship between the value left on the card and the number of car washes she’s used.

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

2x minus y equals 6, x plus y equals negative 3

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document