Help w ma math hw 4 QUESTIOND pls 40 POINTS

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c