If a culture starts out with extactly 50 bacterial cells, how many bacteria will be present after 4 hours?

What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units

What is the slope of the line passing through the points (-5, 7) and (-3,5)?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220