Help please!!! At a concession stand, seven hot dog(s) and two hamburger(s) cost $15.00; two hot dog(s) and seven hamburger(s) cost $18.75. Find the cost of one hot dog and the cost of one hamburger.

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

This is about circle theorems. someone asap : (

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)