rowan raised $640 in a charity walk last year. This year he raised 15% more than he raised last year. How much money did rowan raise this year? SHOW YOUR WORK.PLEASE HELP ME

640 * 1.15 = ?

736

Right.

To find out how much money Rowan raised this year, we need to calculate 15% of the amount he raised last year and then add it to the amount he raised last year.

Step 1: Calculate 15% of the amount raised last year
15% of 640 can be found by multiplying 640 by 0.15
15% of 640 = 0.15 * 640 = 96

Step 2: Add the amount raised last year to the 15% increase to find the amount raised this year
Amount raised this year = Amount raised last year + 15% increase
Amount raised this year = 640 + 96 = 736

Therefore, Rowan raised $736 this year.