Don’t really understand this problem. Need practical help to better understand the mark.

Point a is located at (0, 4), and point c is located at (−3, 5). find the x value for the point b that is located one fourth the distance from point a to point c. −0.25 −0.5 −0.75 −1

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.