12. (09.02) Solve x2 – 8x – 20 = 0. (1 point)
O x = 4, x = -5
O x = -4, x = 5
O x = 2, x = -10
O x = -2, x = 10

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Use the distributive law to multiply. 3(4x + 5y + 6)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10