Samuel orders four dvds from an online music store. each dvd costs $9.99. he has a 20% discount code, and sales tax is 6.75%. what is the total cost of his order?

What is the circumference of a circle with an area of 50.24 cm²?

Pls never taught i’m really confused and i rlly need

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.