How do you write 345,000,000,000 in scientific notation

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

Which choice names the hypotenuse of triangle xyz? a. segment yx b. segment yz c. segment ab d. segment zx

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