Which bowling ball has more energy, a 5kg ball rolling at 4m/s or a 6kg ball rolling at 3m/s?

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i