The distance between (3,a) and (5,4) is root 13 find a

with explanations please

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75