You go to the movies with five friends. You and one of your friends each buy a ticket and a bag of popcorn. The rest of your friends buy just one ticket each. The expression 4x + 2(x + y) represents the situation. Evaluate the expression when tickets cost $7.25 and a bag of popcorn costs $3.25. (Hint: x is the
2
price of the tickets and y is the popcorn price)
The total cost for you and your friends is
1
3
4
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Browning labs is testing a new growth inhibitor for a certain type of bacteria. the bacteria naturally grows exponentially each hour at a rate of 6.2%. the researchers know that the inhibitor will make the growth rate of the bacteria less than or equal to its natural growth rate. the sample currently contains 100 bacteria.the container holding the sample can hold only 300 bacteria, after which the sample will no longer grow. however, the researchers are increasing the size of the container at a constant rate allowing the container to hold 100 more bacteria each hour. they would like to determine the possible number of bacteria in the container over time.create a system of inequalities to model the situation above, and use it to determine how many of the solutions are viable.

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?