Ling bought 3 DVDs for $15.95 each and a DVD player for $64.99. After sales tax, her total came to $119.89. What is the sales tax rate? Round your answer to the nearest hundredth, if necessary.

The function f (x) = 4500 (0.98) ^x represents the value in dollars of a vehicle x years after it has been purchased new. What is the average rate of change in value per year between years 5 and 10? A. - $3676.83/year B. - $0.98/year C. - $78.

Does the equation y = (0.9) x represents exponential growth or decay? Answer Exponential Growth Exponential Decay

0.02 write as a fraction or mixed number in simplest form

Ashley purchased a used car for 8200 and had to pay 7.4% tax. how much tax did she pay?

Multiply (x-3) (4x+2) using the FOIL method

Angie has a jar that contains 2 red marbles, 2 blue marbles, and no other marbles. She randomly draws 2 marbles from the jar. If the marbles are the same colour, she discards one and puts the other back into the jar.

Henry had charges 933 dollars to his credit card. Even after the cost of his net purchase, he was still under his credit limit of 1500 dollars. Write a mathematical sentence that expresses the information

On Tuesday a local hamburger shop sold a combined total of 264 hamburgers and cheeseburgers. The number of cheeseburgers old was two times the number of hamburger sold. How many hamburgers were sold?

I do not understand how to simplify 5y-8x-y+12x

Four times a number is 21 more than the number