Answer:
19$
Step-by-step explanation:
16 + 10 = 26 + 5 = 31
he wins 50
50 - 31 = 19
He's left with 19 dollars out of 50 after he pays everyone back .
Looks good to me. Calculation is correct. Although you might want to add to #1 your description; that the width of the rectangle is the circumference of the circle (w = 2πr) and that you add the surfaces together to get the total surface area.
total surface area = area of rectangular part + area of circular parts
SA = 2πrL + 2πr²
Factor out the -3
(-3)(x^2-2x+3)
