Emma drank three 8 ounce cups of coffee. each cup of coffee contains 130 mg of caffeine. emma's body elimantes 13% of the caffeine each hour. write an exponential function that represents the amount of caffeine, c , in her body after t hours.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

The tile along the edge of a triangular community pool needs to be replaced? ?

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?