ABC has vertices A(-7,4), B(6,18). Dilate ABC so that it’s perimeter is one half the original perimeter. What are the coordinates of the vertices of ABC

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Can someone me out here number 4 plz