Help please I’m new to this not really sure how it works but I need help with math!

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 answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.