Tracy, Danielle and Sherri bought snacks for a girls’ sleepover. Tracy bought 4 bags of pretzels, 4 liters of soda, and 6 chocolate bars and paid $21. Danielle bought 3 bags of pretzels, 2 liters of soda, and 10 chocolate bars and she paid $20.88. Sherri picked up 2 bags of pretzels, 3 liters of soda, and 4 chocolate bars and she ended up paying $13.17.

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Alocal hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on friday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday? a local hamburger shop sold a combined total of hamburgers and cheeseburgers on friday. there were more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?

You draw a card at random from a deck that contains 33 black cards and 77 red cards.