David buys 3 movie tickets for $6 each and 2 bags of popcorn for $2 each. Simplify the expression 3.6 +2.2 to find out how
much money David spent in all

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?