Your middle school has 900 students. 13 of students bring their lunch instead of buying lunch at school. what is the value of the ratio of the number of students who do bring their lunch to the number of students who do not

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

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

If g^-1(x) is the inverse of g (x) which statement must be true