4 x (3+18) ÷6 by the way: this is a fifth grade question

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

28 x 12 + 34 = ? it's for a test that if i fail on i will not proceed into the honor roll society i always dreamed of!me! worth 50 !

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.