3) Suppose the visitor is a food critic for a traveling publication and was sent to the town and charged with the task of reviewing 3 different restaurants for their service. Since he is only concerned with the service he does not care about which particular menu he is having (i. e. the breakfast menu, the lunch menu or the dinner menu). This being the case, how many different ways can he choose 3 different restaurants to review. – ½ point

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.

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0