Calculate the density: Object 1: has a mass of 45 g and a volume 3.5 ml Object 2: has a mass of 18 g and a volume of 9 ml

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

Just tell me how to set up the equation.