Help pls If Z is the midpoint of RT what are x, RZ, and RT?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

15 points! write the slope-intercept form of the equation of the line through the given point with the given slope. use y-y = m(x-x) to solve. through (2,5) slope= undefined