What is the expanded form of 34.81?

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.