Function f(x) represents the population of bacteria X hous after 9 a. m. what does f(2) - f(1) represent?

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.