Section 8.1 Quiz 8.3	Question:	Solve the following system of linear equations. Enter your solution like x=-7, y=8. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. 6x + 8y  =  38 10x + 15y  =  70

Section 8.1 Quiz 8.4	Question:	Solve the following system of linear equations. Enter your solution like x=-7, y=8. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. 15x + 10y  =  70 18x + 12y  =  78

Section 8.1 Quiz 8.5	Question:	Solve the following system of linear equations. Enter your solution like x=-7, y=8. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. 15x + 10y  =  70 18x + 12y  =  84

Section 8.2 Quiz 8.6	Question:	Solve the following system of linear equations. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. 6x + y – 5z  =  4 5x + 7y + 2z  =  28 4x – y – 5z  =  –4
	Variation:	Solve the following system of linear equations. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. x – 4y + 5z  =  15 x + 5y – 4z  =  –13 8x + 5y + 3z  =  –34

Section 8.2 Quiz 8.7	Question:	Solve the following system of linear equations. If there are infinitely many solutions, enter redundant. If there is no solution, enter no solution. 4x + 4y + 4z  =  –8 –7x – 3y – 5z  =  –6 3x + 4y – 6z  =  8

Section 8.2 Quiz 8.8	Question:	The manager of a movie theater needs to calculate the number of each type of ticket sold. Children's tickets cost $5.50 each; senior citizen's tickets cost $7.00; and full-price tickets cost $8.00. There were 193 total tickets sold, and 76 of those were discounted tickets. If the total revenue was $1397.50, how many children's tickets were sold?