3. Solve the following system of equations.
5x- y+ z= -4
2x+ 2y-3z= -6
x-3y+ 2z= 0
Select the correct choice below:
A. There is one solution. The solution is
( ).
B. There are infinitely many solutions. The solutions
( ,z)
C. There is no solution.
4. The total number of restaurant-purchased meals that the
average person will eat in a restaurant, in a car, or at home in
a year is 150. The total number of these meals...