Patrice user a $15 gift certificate when she purchased a pair of sandals. After 8% sales tax was applied to the price of the sandals, the $15 dollars was deducted. Patrice had to pay a total of $12 for the sandals. How much did the sandals cost before tax?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.