I need help on all of it

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

Measure a and b and find their sum. how are the angles related?

Aband wants to create a cd of their last concert. to creat the cds, the cost will be $350 advertisement fee plus $3 per cd.write an inequality that represents how many cds they can buy with a maximum of $1225.solve the inequality