NEED HELP ASAP PLSS 1). What is the average rate of change of the function f(x) = x² + 2x - 9 as x increases from
1 to 3?
2). f(x) = x² + 3x - 2, some values of g(x) are shown in the table.
Which function has a
smaller y-intercept?
a. f(x)
b. g(x)

3). A rectangular rug is 3 feet longer than it is wide. The area of the rug is 108 square feet. Which
equation represents the area of the rug?
3x = 108
b. 3(3 + x) = 108
C. x(x + 3) = 108
d. X + 108 = 3

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?

Pleas ! its urgent! what is the value of x? enter your answer in the box. mm