Letters can replace numbers in simple mathematical problems. If M and N represent digits and MN+N=NM - N, then M equals
A. 7
B. 8
C. 9
D. 10
E. None of these

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o

Question 10 multiple choice worth 1 points) (09.06) based on the graph below, what is the total number of solutions to the equation f) = ? 10.5 + 13,75 + 11 + 25 + 2.75 -6 -5 4 3 2- -2.75 g(x) 65 -8.25 - 13.75 - one otwo three four

What is a rule for determining possible values of a variable in a inequality