Demonstrate how you can add two numbers together to get zero. Does this work for all numbers? What is this relationship called?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt