Help me please, ill give u the brainlest thing

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

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