Jamelah has four pens in her pencil case. She has two blue pens, one black pen and one red pen. What is the probability that Jamelah will take a black pen out of her pencil case? *

Asegment in the complex plane has a midpoint at 7 – 2i. if the segment has an endpoint at 11 – 3i, what is the other endpoint?

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters