How do you write the unit rate for 1/5÷1/15

What is an equation of the line that passes through the point (-2,3) and is parallel to the line whose equations is y=3/2x-4? i am stuck between y=3/2x or y=3/2x+6 : (

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?