Astudent ran the 100-m dash in 12.9 s. what was the student’s speed in miles per hour?

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?