Free pts but pls ppl go on my profile and try answering the 5 most recent questions pls and ty

Find the distance between the point (-3,-4), and (see the picture below)

Enter your answer and show all the steps that you use to solve this problem in the space provided. write a list of steps that are needed to find the measure of ? b .

Astereo system is marked down from 450 to 382.50 what is the discount rate