15x + 3y = 5
Determine whether the pair of lines is parallel, perpendicular, or neither

Average acceleration: i have no idea how to do this.

What is coefficient of the term of degree of degree 5 in the polynomial below

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