Help ! (Math) pls

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

How much is $1200 worth at the end of1 year,if the interest rate is 5.5% is compounded quarterly.

If a triangle given by the matrix  [2 3 5 -1 0 2]  is dilated by a scale factor of 2, what will happen to the side lengths and angle measures of the triangle