Neha invested $1900 in the stock market. She invested part of it McDonald's stock that usually pays 15% per year and the remainder in the Toyota's stock that usually pays 5% per year. At the end of the year, she earned $240 in interest. Assuming each stock earned what was expected, how much did Neha invest in each stock?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

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.

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?