How much interest is earned in one year on $5,000 at an interest rate of 3%?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

What is the value of the product (3-2i)(3+2i)?