Which linear equations have one solution? Check all that apply. 5x - 1 = 3(x + 11)
4(x - 2) + 4x = 8(x – 9)
4(x – 6) + 4 = 2(x - 3)
2(x – 4) = 5(x – 3) + 3
2(x - 1) + 3x = 5(x - 2) + 3

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax