A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has increased to 590. (a) Find an expression for the number of bacteria after t hours. P(t)

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way