Aculture started with 1000 bacteria. after 2 hours it grew to 1,100 bacteria. predict how many bacteria will be present after 9 hours. round your answer to the nearest whole number.
p=ae^kt

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.